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737 Cards in this Set

  • Front
  • Back

When shall a firefighter ride on the outside of a moving apparatus?

Never

The standard specifies for minimum pump capacity of what with how large of a tank?

750 GPM


300 gallons

Pump capacities larger than 750 GPMs increase in increments of what?

250 GPM

Most municipal fire departments have pumpers capable of what?

2,000 GPMs or less

Large onboard tank of foam concentrate often contains how many gallons of foam concentrate?

500 gallons or more

Both municipal or industrial foam pumpers may be equipped between what flow capacity?

750-3,000 GPM

Most municipal fire departments have foam tanks ranging between what?

20-100 gallons

The articulating or telescoping devices most commonly combined with pumpers range in height between what?

50-75 feet

Mobile water supply apparatus are equipped with a tank capacity of at least how many gallons?

1,000 gallons

Specially designed woodland apparatus are often mounted on how big of chassis?

One ton or larger

Brush trucks, brush breakers, booster apparatus vehicles often have water tank capacities of how many gallons?

500 gallons

Standard on Fire Department Occupational Safety and Health Program

NFPA 1500

What is used to extinguish small fires and hot spots as the vehicle advances through short vegetation?

Ground sweep nozzles

What is used to extinguish small fires and hot spots as the vehicle advances through short vegetation?

Ground sweep nozzles

Wildland Fire Fighting for Structural Firefighters

NFPA 1906

Some fire boats have capacities as high as how many GPMs?

50,000 GPM

Some fire boats have capacities as high as how many GPMs?

50,000 GPM

Individual master streams on fire boats have the capacity of discharging how many GPMs?

10,000 GPMs

A Quint vehicle must be equipped with a capacity of what with what size tank?

1,000 GPMs


300 gallons

A Quint vehicle must be equipped with a capacity of what with what size tank?

1,000 GPMs


300 gallons

Long term pumping operations involving fires at petroleum storage facilities or landfills may be suitable for what kind of pump?

Trailer mounted fire pumps

What is used to convert a vehicles 12 or 24 volt DC current into 110-220 Volt AC current?

Inverter

Inverters are usually used to power vehicle mounted what?

Flood lights

What is used to convert a vehicles 12 or 24 volt DC current into 110-220 Volt AC current?

Inverter

Inverters are usually used to power vehicle mounted what?

Flood lights

Portable generators have up to how much capacity?

5,000 Watts

What is used to convert a vehicles 12 or 24 volt DC current into 110-220 Volt AC current?

Inverter

Inverters are usually used to power vehicle mounted what?

Flood lights

Portable generators have up to how much capacity?

5,000 Watts

Vehicle mounted generators have up to how much capacity?

12,000 watts

Inverters are usually used to power vehicle mounted what?

Flood lights

Vehicle mounted generators have up to how much capacity?

12,000 watts

Rescue apparatus or other specialized units may feature a fixed generator system with capacities of how much?

50,000 watts or greater

The lighting equipment carried on apparatus may be portable or fixed and have capacities between what?

300-1,000 watts

Some apparatus have banks of lights mounted on booms that are powered by electric, pneumatic, or hydraulic systems, where these installations have a capacity between what per light?

500-1,500 watts per light

A new vehicle should be washed frequently using cold water to harden the paint and keep it from spotting for the first how many months?

6 months

To clean automotive glass, what should you use?

Warm soapy water or commercial glass cleaner

How long should you wait to apply wax and polish to a new apparatus?

6 months

The driver/operator begins the walk around inspection beginning on what side of the apparatus?

Driver’s door then clockwise

Tire selections for fire apparatus are based on what?

GAWR


Gross Axle Weight Ratings

NFPA 1911 requires that all tires be replaced every how many years regardless of condition?

7 years

This turns on various lights at specific intervals so that the startup electrical load for all devices does not occur at the same time.

Load Sequencer

This monitors the electrical system for any added electrical loads that threaten to overload the system.

Load monitor

This monitors the electrical system for any added electrical loads that threaten to overload the system.

Load monitor

If an overload condition occurs, the load monitor will shut down less important electrical equipment in order to prevent overload. What is this called?

Load shedding

What causes harsh shifting, gear clashing, and damage to the gear teeth?

Excessive free play in the clutch causing the clutch not to fully release

A steering wheel should be no more than approximately how many degrees in either direction?

10 degrees

On a 20 inch diameter steering wheel, the play may be about how many inches in either direction?

2 inches

Who determines the GVWR as the maximum weight at which a vehicle can safely be operated?

The manufacturer

NFPA 1911 states that a side to side variance in weight should not exceed how much in percentage?

7%

Federal, state, and provincial laws may dictate how and when what is tested?

Brakes

Apparatus with air brakes are to be equipped with an air pressure protection valve that prevents air horns or other things from being operated when the pressure in the air reservoir drops below what pressure?

80 psi

Apparatus brakes should be thoroughly tested how often?

Annually

Most engine compartment checks should not be done when the vehicle is?

Running

DEF is stored in a tank downstream of the DPF and is injected into the gas in order to reduce what emissions from the Diesel engines?

Nitrogen Oxide

Most modern truck batteries are?

Maintenance free

Older apparatus may still have batteries that require additional what to replenish the cell’s fluid as it evaporates over time?

Distilled water

Most automotive batteries contain what?

Lead


Sulfuric acid

Batteries can also give off what type of gas that is flammable?

Hydrogen gas

Standard for Fire Apparatus Driver/Operator Professional Qualifications

NFPA 1002

Most driving regulations pertain not what type of conditions?

Dry, clear roads during daylight conditions

Driving under the influence of alcohol is considered?

Gross negligence

Driving under the influence of alcohol is considered?

Gross negligence

What is the loss of braking function which occurs due to excessive use of the brakes?

Brake fade

According to SAE, it was determined what percentage of all collisions the operator was not aware of a problem until it was too late?

42%

For safety reasons, many manufacturers of apparatuses recommend that the pump tanks be what during driving operations?

Full or empty

What type of apparatus has been built by embers of the fire department or locals mechanics, overloaded vehicles and most likely to have design problems? These vehicles are often built on government surplus or other used chassis that may be well worn even before conversion and usually top heavy after being retrofitted.

Homebuilt apparatus

Per NFPA1500 you must don fire gear before entering an apparatus with the exception of what?

Helmets

Per NFPA1500 you must don fire gear before entering an apparatus with the exception of what?

Helmets

When loading hose, drive apparatus in forward direction, straddling or to one side of the hose at a speed no greater than what?

5 mph

A tiller operator and/or instructor must wear what if not in an enclosed area?

Helmet


Eye protection

What action wastes fuel and may lead to the buildup of carbon injectors, valves, pistons and many cause damages to internal engine components and emission systems?

Allowing Diesel engine to idle

What year did the start equipping engines with DPF?

2007

Can park regeneration be used during pumping operations?

No

What can cause a debate to the apparatus engine, or limit the vehicle speed of approximately only 5 mph?

Failure to fill the DEF tank

A driver should never shut down an engine immediately after a full load operation or when the temperature gauge indicates that the engine is overheated. A hot engine should cool to normal operating temperature in idling time in how many minutes?

3-5 minutes

What action will cut off fuel flow from the injectors and create fuel pressure that can build up behind the shutoff valve and prevent the valve from opening?

Shutting down the engine while it is in motion

Some jurisdictions recommend to manually shift an apparatus with an automatic transmission in order to do what?

Extend brake life

Angle formed by level ground and a line form the point where the front tires touch the ground to the lowest projection at the front of apparatus?

Angle of approach

Angle formed by level ground and a line from the point where the rear tires touch the ground to the lowest projection at the rear of apparatus?

Angle of departure

Angle formed by level ground and a line form the point where the rear tires touch the ground to the bottom of the frame at the wheelbase midpoint?

Breakover angle

Weight of the apparatus after loading it with all the equipment and personnel must have an axle loading balance percentage of what from side to side and writhing axel wight rating front to back?

7%

To prevent engine damage, limit the downhill speed to lower than maximum what?

RPMs

Process of injecting or supplying the Diesel engine with more fuel that can be burned is what?

Overthrottling

What occurs when the throttle is applied when a main yak transmission is in too high of a gear for the demand on the engine?

Engine lugging

How many times greater distance does it take a vehicle to come to a stop on snow and ice than on dry pavement?

3-15 times greater distance

At what speeds does an emergency vehicle outrun the effective range of its audible warning device?

50 mph

Increasing the speed of a vehicle by 200 mph can decrease the audible distance by how many feet?

250 feet or more

When more than one emergency vehicle are responding on the same route, they should travel at least how many feet apart?

300 - 500 feet

Some jurisdictions equipped apparatus with what color warning lights to illuminate the trim worn by firefighters?

Yellow warning lights

In strobe light preemptive devices, what color light mounted on traffic pole indicates that the signal has been received and a green light is forth coming?

White light

In strobe light preemptive devices, what color light mounted on traffic pole indicates that the signal has been received and a green light is forth coming?

White light

Traffic signal preemption devices, the sound of an oncoming siren can activate the preemptive devices from how far away?

Several hundred feet to about half a mile

In strobe light preemptive devices, what color light mounted on traffic pole indicates that the signal has been received and a green light is forth coming?

White light

Traffic signal preemption devices, the sound of an oncoming siren can activate the preemptive devices from how far away?

Several hundred feet to about half a mile

Intersection equipped with traffic signal preemptive devices will have a 3 inch light in what colors? What do they mean?

White - a green light is coming for emergency vehicle


Blue - an emergency vehicle is approaching and a red light is coming

The time needed to stop the apparatus or perform an evasive maneuver at the current rate of speed is what?

Visual lead time

The time needed to stop the apparatus or perform an evasive maneuver at the current rate of speed is what?

Visual lead time

The distance the vehicle travels from the time the brakes are applied until the apparatus comes to a complete stop?

Braking distance

The time needed to stop the apparatus or perform an evasive maneuver at the current rate of speed is what?

Visual lead time

The distance the vehicle travels from the time the brakes are applied until the apparatus comes to a complete stop?

Braking distance

The sum of the driver’s reaction distance and the vehicle braking distance?

Total stopping distance

The time needed to stop the apparatus or perform an evasive maneuver at the current rate of speed is what?

Visual lead time

The distance the vehicle travels from the time the brakes are applied until the apparatus comes to a complete stop?

Braking distance

The sum of the driver’s reaction distance and the vehicle braking distance?

Total stopping distance

After perceiving the need to stop, the distance the apparatus travels while the operator transfers his foot from the accelerator to the brake pedal?

Reaction distance

NFPA 1901 requires that all apparatus with a GVWR or how many pounds or greater be equipped with an auxiliary braking system?

36,000 lbs

NFPA 1901 requires that all apparatus with a GVWR or how many pounds or greater be equipped with an auxiliary braking system?

36,000 lbs

Brake torque will increase as the transmission does what?

Downshifts

This brake uses a valve to restrict the flow of the exhaust, which creates bake pressure that adds to the engine’s inherent braking ability?

Exhaust brake

This brake is an electronically-activated system added to valve train that converts the mechanical energy of the vehicle into heat by compressing the engine intake air and then discharging the pressure to the atmosphere through the exhaust?

Engine compression brake

This auxiliary brake is either mounted in the driveline, or supplied as part of rear axle. An electromagnetic field is created by supplying electrical power to a series of coils in the retarder which inhibits the rotation of the rotor and creates a braking torque at the rear wheels?

Electromagnetic retarder

Chains in auxiliary traction control system may be ineffective in snow deeper than how many inches?

3-6 inches

Which feature automatically reduces engine torque and applies the brakes to wheels that have lost traction and being to spin?

ATC automatic traction control

What may be heard when driver controlled differential lock is engaged while turning?

Scrubbing

Manufacturers recommend turning the driver controlled differential lock off when traveling in what scenario?

Turning on a downhill

What features are designed to help prevent roll-overs and tipping caused by cornering or sudden changes of direction?

Stability control systems

A spotter must stand how many feet behind an apparatus?

8-10 feet

A spotter must stand how many feet behind an apparatus?

8-10 feet

How many short blasts of the vehicle’s horn immediately before backing the apparatus?

Two

At 5mph how many feet of hose is laid out each second?

7 feet

At 5mph how many feet of hose is laid out each second?

7 feet

The bracket or cabinet in an apparatus must be capable of restraining the equipment against a force of up to how any times the equipment’s weight?

10 times the weight

At what pressure can hydraulic fluid penetrate skin?

100 psi

At what pressure can hydraulic fluid penetrate skin?

100 psi

Who determines the best placement for the first arriving apparatus?

Driver or company officer

At what pressure can hydraulic fluid penetrate skin?

100 psi

Who determines the best placement for the first arriving apparatus?

Driver or company officer

When arriving at an incident and no fire is evident, how should the first arriving apparatus pull up?

Pass the building the view three sides of building

Collapse zone for vehicles is what?

One and a half times the height of a building

Collapse zone for vehicles is what?

One and a half times the height of a building

If a collapse is imminent, where is the safest location?

Corners of building

During a high rise fire, how many feet from the structure should you taste precautions from falling debris?

200 feet from the base of building

During a high rise fire, how many feet from the structure should you taste precautions from falling debris?

200 feet from the base of building

Shorter sections of LDH come in what sizes other than 100’?

10 to 50feet

During a high rise fire, how many feet from the structure should you taste precautions from falling debris?

200 feet from the base of building

Shorter sections of LDH come in what sizes other than 100’?

10 to 50feet

A good way to minimize the chance of intake hose kinking is to put a what directional twist in the hose making the connection between a hydrant and a pumper?

Counterclockwise

What type kind of pumping can be used when one strong hydrant is used?

Dual pumping

What type of pumping can be used when pressure needed is greater than the capabilities of the apparatus?

Tandem pumping

In tandem pumping operations apparatus may be located up to how many feet apart?

300 feet

What type of pumping can be used to increase the volume of water for an incident?

Relay pumping

The boundary between wildland and structural development is what?

Wildland/urban interface

What is a natural man made barrier that will prevent the fire from encircling the vehicle and crew?

Anchor point

This type of staging is used on any multi unit response of two or more units?

Level 1

This type of staging is used on any multi unit response of two or more units?

Level 1

During Level 1 staging, units must stop and stage how far from an incident?

One block

This type of staging is used on any multi unit response of two or more units?

Level 1

During Level 1 staging, units must stop and stage how far from an incident?

One block

This level of staging is implemented when numerous units are responding to operate at the same incident, including mutual aid or a result of multiple alarms?

Level 2 staging

This type of staging is used on any multi unit response of two or more units?

Level 1

During Level 1 staging, units must stop and stage how far from an incident?

One block

This level of staging is implemented when numerous units are responding to operate at the same incident, including mutual aid or a result of multiple alarms?

Level 2 staging

On highways, apparatus should never travel on opposite direction of travel unless?

Police have closed the road traffic

Personnel can enter briefly in this control zone without PPE

Warm zone

Trains may require how much distance to come to a complete stop?

1-2 miles

How much does one gallon of water weigh?

8.3 lbs

How much does one gallon of water weigh?

8.3 lbs

How much does water weigh per cubic foot?

62.4 lb/ft3

Water has a high surface tensions that makes it difficult to do what?

Soak into dense materials

How any principles of pressure are there?

6 principles

Fluid pressure is perpendicular to any surface on which it act

First principle

Fluid pressure is perpendicular to any surface on which it act

First principle

Fluid pressure as a point in fluid at rest is the same intensity in all directions

Second prinicple

Fluid pressure is perpendicular to any surface on which it act

First principle

Fluid pressure as a point in fluid at rest is the same intensity in all directions

Second prinicple

Pressure applied to a confined fluid transmitted equally in all directions

Third principle

The pressure of a liquid in an open vessel is proportional to its depth

Fourth principle

The pressure of a liquid in an open vessel is proportional to its depth

Fourth principle

The pressure of a liquid in an open vessel is proportional to the density of the liquid

Fifth prinicple

Is mercury heavier than water?

Yes

Is mercury heavier than water?

Yes

The pressure of a liquid at the bottom of a vessel is independent of the shape of the vessel

Sixth principle

Atmospheric pressure at sea level is?

14.7 psi

In a vertical cylinder, a pressure of 1 psi makes the column of mercury about how many inches tall?

2.04 inches

In a vertical cylinder, a pressure of 1 psi makes the column of mercury about how many inches tall?

2.04 inches

An absolute zero pressure is considered what?

Perfect vacuum

In a vertical cylinder, a pressure of 1 psi makes the column of mercury about how many inches tall?

2.04 inches

An absolute zero pressure is considered what?

Perfect vacuum

Any pressure less than atmospheric pressure is called?

Vacuum

What is referred to as the height of water supply above that discharge orifice?

Head

For every one foot increase in elevation, how much psi is gained?

0.434 psi

When measuring the forward velocity of flow pressure using a nozzle, a smooth bore nozzle must be used with what two items?

Pitot tube


Gauge

What refers to the center line of the pump or the bottom of a static water supply source above or below ground level?

Elevation

What refers to the center line of the pump or the bottom of a static water supply source above or below ground level?

Elevation

What is the position of an object in relation to sea level?

Altitude

Above sea level, atmospheric pressure decreases 0.5 psi for every how many feet?

1,000 feet

The friction loss in older hose may be as much as what percent compared to new hose?

50 % or greater

How many principles are there for friction loss?

Four

If all other conditions are the same, friction loss varies directly with the length of the hose or pipe

First Principle of friction loss

If all other conditions are the same, friction loss varies directly with the length of the hose or pipe

First Principle of friction loss

When hoses are the same size, friction loss varies approximately with the square of the increase in the velocity of the flow

Second Prinicple of friction loss

If all other conditions are the same, friction loss varies directly with the length of the hose or pipe

First Principle of friction loss

When hoses are the same size, friction loss varies approximately with the square of the increase in the velocity of the flow

Second Prinicple of friction loss

For the same discharge, friction loss varies inversely as the fifth power of the diameter of the hose

Third principle

If all other conditions are the same, friction loss varies directly with the length of the hose or pipe

First Principle of friction loss

When hoses are the same size, friction loss varies approximately with the square of the increase in the velocity of the flow

Second Prinicple of friction loss

For the same discharge, friction loss varies inversely as the fifth power of the diameter of the hose

Third principle

For a given velocity, friction loss is approximately the same, regardless of the pressure of the water

Fourth principle of friction loss

With water being virtually incompressible, a pressure of 30,000 psi is required to reduce its volume by what percent?

1 %

There are practical limits to the velocity at which a stream can travel. If the velocity is increased beyond this point, the friction will become so great that the entire system is agitated by the resistance creating what?

Critical velocity

What two things may be added to the water to remove particles from the drinking water?

Fluoride and ozone

What two things may be added to the water to remove particles from the drinking water?

Fluoride and ozone

When a fire hydrant receives water from two or more directions, it is said to have what?

Circulating feed or looped line

Large pipes with relatively widespread spacing, that convert large quantities of water to various points of the system for local distribution to the smaller mains

Primary Feeders

Large pipes with relatively widespread spacing, that convert large quantities of water to various points of the system for local distribution to the smaller mains

Primary Feeders

Network of intermediate-sized pipes that reinforce the grid within the various loops of the primary feeder system and aid the concentration of the required fire flow at any point

Secondary feeders

Large pipes with relatively widespread spacing, that convert large quantities of water to various points of the system for local distribution to the smaller mains

Primary Feeders

Network of intermediate-sized pipes that reinforce the grid within the various loops of the primary feeder system and aid the concentration of the required fire flow at any point

Secondary feeders

Grid arrangement of smaller mains serving individual fire hydrants and blocks of consumers

Distributors

Average amount of water used per day based on the total amount of water used in a water distribution system over the period of one year

Average Daily Consumption

Average amount of water used per day based on the total amount of water used in a water distribution system over the period of one year

Average Daily Consumption

Maximum total amount of water that was used during any 24 hour interval within a 3 year period.

Maximum daily consumption

Average amount of water used per day based on the total amount of water used in a water distribution system over the period of one year

Average Daily Consumption

Maximum total amount of water that was used during any 24 hour interval within a 3 year period.

Maximum daily consumption

The maximum amount of water used in any 1 hour interval over the course of a day.

Peak hourly consumption

Degrees of a narrow fog are between what?

15-45

Degrees of a narrow fog are between what?

15-45

Degrees of a wide fog are between what?

45-80

These type of streams are created by deflecting water around an inside circular stem in the nozzle and the water is then deflected by the exterior barrel of the nozzle.

Periphery-deflected streams

This type of stream breaks water into fine, evenly divided particles by driving several jets of water together at an angle and provide mostly a wide angle.

Impinging stream

Most fog nozzles are designed to operate at what psi? They can also operate at these lower psi?

100psi


50 and 75 psi

High pressure fog nozzles can operate at psi of what? How much GPMs?

800 psi


8-15 GPM

High pressure fog nozzles can operate at psi of what? How much GPMs?

800 psi


8-15 GPM

What is the general maximum flow for a handline?

350 GPM

How long is the piercing nozzle? How use is it?

3-6 feet


1.5 inches in diameter

How long is the piercing nozzle? How use is it?

3-6 feet


1.5 inches in diameter

In piercing nozzles, the impinging jet nozzle is capable of flowing how many GPMs at what psi?

125 GPM


100 psi

What does a chimney nozzle flow at and at what psi?

1.5-3 GPM


100 psi

What does a chimney nozzle flow at and at what psi?

1.5-3 GPM


100 psi

Formula for nozzle reaction in solid stream?

NR = 1.57 X d2 X NP

What does a chimney nozzle flow at and at what psi?

1.5-3 GPM


100 psi

Formula for nozzle reaction in solid stream?

NR = 1.57 X d2 X NP

Formula for nozzle reaction in a fog stream?

NR = 0.0505 X Q X Square root NP

Flowmeters display in increments of?

10 GPM or less

This type of flow meter is mounted at the top of a straight section of the discharge pipe so that only a small portion of the device extends in the waterway. A sensor measures the speed at which the flow meter spins and translates the information into a flow measurement

Paddlewheel

This type of flow meter is mounted at the top of a straight section of the discharge pipe so that only a small portion of the device extends in the waterway. A sensor measures the speed at which the flow meter spins and translates the information into a flow measurement

Paddlewheel

This type of flowmeter employs a stainless steel spring probe to detect water movement in the discharge piping. The greater the flow, the more the spring is bent. An electrical charge is transmitted from the spring to the display for the operator

Spring probe

This type of flow meter is mounted at the top of a straight section of the discharge pipe so that only a small portion of the device extends in the waterway. A sensor measures the speed at which the flow meter spins and translates the information into a flow measurement

Paddlewheel

This type of flowmeter employs a stainless steel spring probe to detect water movement in the discharge piping. The greater the flow, the more the spring is bent. An electrical charge is transmitted from the spring to the display for the operator

Spring probe

A flowmeter in good working order should be accurate to a tolerance of plus or minus how much percentage?

3 %

Each discharge equipped with a flowmeter must have a digital readout display mounted within how many inches of the control valve for that discharge?

6 inches

Each discharge equipped with a flowmeter must have a digital readout display mounted within how many inches of the control valve for that discharge?

6 inches

If a pressure gauge is mounted at the 6 inch location where the digital readout must be, then the flowmeter digital readout must be mounted within how many inches adjacent to the pressure gauge?

2 inches

In relay pumping, an intake readout cannot be allowed to drop below what psi?

20 psi

In relay pumping, an intake readout cannot be allowed to drop below what psi?

20 psi

A pressure governor will not automatically compensate when a hose line is shut down in which mode?

RPM mode

Condensed formula for 3 inch hose

FL = Qsquared

Condensed Q formula for 4 inch

FL = Q2/5

Condensed Q formula for 4 inch

FL = Q2/5

Condensed Q formula for 5 inch hose

FL = Q2/15

What type of pump is self priming?

Positive displacement pump

Posing pumps can provide pressures of up to?

1,000 psi

What are the simplest type of pump?

Rotary pump

Total amount of water that can be pumped by a rotary gear pump depends on what?

Size of the pockets in the gears and speed of rotation

To prevent damage to the casings of pumps, most gear pumps feature gears made of what?

Bronze or another soft metal

What are pump casings made of?

Strong alloy such as cast iron

What is the most common type of pump used to prime a centrifugal pump?

Rotary Vane pump

In a centrifugal pump the volume capacity of the pump is dictated by the size of?

Impeller

Three main factors that influence a centrifugal fire pump’s discharge pressure :

1. Amount of water being discharged


2. Speed at which the impeller is turning


3. Pressure of water when it enters the pump from a pressurized source

What type of pump is unable to pump air and is more self priming?

Centrifugal pump

Single stage centrifugal pumps have the ability to flow how many GPMs?

2,250 GPM

Newton’s Third Law of Physics?

For every action there is an equal and opposite reaction

The process of switching between pressure and volume is referred to as?

Changeover

In parallel (volume) mode the pump will supply 100% of its rated capacity at 150 psi at feet of lift with how many feet of suction hose while drafting?

20 feet

In parallel (volume) mode the pump will supply 100% of its rated capacity at 150 psi at feet of lift with how many feet of suction hose while drafting?

20 feet

Many power-operated transfer valves operate at pressures as high as?

200 psi

In parallel (volume) mode the pump will supply 100% of its rated capacity at 150 psi at feet of lift with how many feet of suction hose while drafting?

20 feet

Many power-operated transfer valves operate at pressures as high as?

200 psi

Switching from volume to pressure can result in the immediate doubling of what?

Doubling of the previous discharge pressure

Some fire pumps have been constructed using up to four impellers connected in series to develop pressure up to?

1,000 psi

What type of valves are essential for a multistage pump?

Clapper valves

A very close opening must be maintained between the pump casing and the hub of the impeller, the opening is usually limited to how wide?

.01 inch or less

What can be replaced to maintain the preferred spacing between the hub of the impeller and pump casing?

Wear rings or clearance rings

Newer model centrifugal pumps may be equipped with what to circulate overheated water between the pump and the main water tank or the atmosphere?

Thermal relief valve

How can a driver manually check for excessive pump temperatures?

Placing hand on intake pipe to see how warm it is

Heat develops by friction where the packing rings come into contact with the shaft in the pump. In order to overcome this wear and tear what is supplied with the packing rings to provide cooling?

Lantern or slinger rings

What happens if packing is too loose in a pump?

Excessive water loss


Inability to draft from static source

Most manufacturers recommend the pump to be what after fire calls in cold weather conditions?

Drained

What types of pump seals are offered that are superior in resistance to warping, stretching, and corrosion

Ceramic seals

Auxiliary engine pumps generally have the pump capacity of what?

500 GPMs

Auxiliary engine pumps generally have the pump capacity of what?

500 GPMs

A mechanism that allows a vehicle engine to power equipment such as a pump, winch, or portable tool; it is typically attached to the transmission

PTO

The PTO unit is powered by what in the vehicle’s transmission?

Idler gear

The PTO unit is powered by what in the vehicle’s transmission?

Idler gear

In a pump and tool operation which gear would be beneficial to maintain a balance between speed and pressure?

Lowest gear

Full torque PTOs that allow the installation of pumps as large as 1,250 GPM are commonly used with automatic transmissions where what mechanism of the engine drive the PTO unit?

Flywheel

Front mount pumps is typically driven through a gear box and a clutch connected by a drive shaft to the front of what?

Crankshaft

Front mount pumps is typically driven through a gear box and a clutch connected by a drive shaft to the front of what?

Crankshaft

In front mount pumps, what causes the impeller of the pump to turn faster than the engine?

Step up gear ratio

Midship mounted pump where power is supplied to the pump through the use of a “what” located in the drive line between the transmission and the rear axle?

Split shaft gear case (transfer case)

In midship mounted pumps, the gear ratio is set to match the engine torque curve to the speed of the rotation required for the impeller to deliver the rated capacity of the pump. The ratio is configured to turn faster than the engine by how many times as fast?

1.5-2.5 times as fast

Some midship mounted pumps are rated for flows between?

500-2,250 GPM

With he engine in idle and the pump engaged, most speedometers will indicate between what?

10-15 mph

What type of pumps are used for auxiliary systems, including compressed air foam system and generators on some apparatus?

Hydrostatic pumps

Rear-mount pumps offer an advantage which include?

Even weight distribution on chassis


More usable compartment space

The piping system and the fire pump itself must be capable of withstanding a hydrostatic test of?

500 psi

According to the NFPA, pumpers with the capacity of 500 GPM or less should have piping capable of flowing what?

250 GPM

According to the NFPA, pumpers with the capacity of 500 GPM or less should have piping capable of flowing what?

250 GPM

According to the NFPA, pumpers with the capacity greater than 500 GPM should be able to flow at least?

500 GPM

Many pumpers are equipped with tank-to-pump piping as large as?

4 inches

Modern pumps are equipped with what type of valve to prevent damage to the tank if the tank-to-pump opens inadvertently while water is being supplied to the pump under pressure, such as during a relay?

Check valve

As piping nears the pump itself, what type of shape does the piping taper off, to prevent a vortex that may introduce air into the pump?

Square

Pumps rated greater than what flow may need more than one large intake connection at each location?

1,500 GPM

As a minimum, all fire apparatus with a rated pump capacity of 750 GPM or greater must be equipped with at least how many 2.5 inch discharges?

2

As a minimum, all fire apparatus with a rated pump capacity of 750 GPM or greater must be equipped with at least how many 2.5 inch discharges?

2

Pumps rated less than 750 GPM are to have how many 2.5 inch discharges?

1

As a minimum, all fire apparatus with a rated pump capacity of 750 GPM or greater must be equipped with at least how many 2.5 inch discharges?

2

Pumps rated less than 750 GPM are to have how many 2.5 inch discharges?

1

Discharges greater than “what” are not to be located on the pump operator’s panel?

2.5 inches

According to the NFPA apparatus equipped with tanks of less than 1,000 gallons must have a tank fill line of a least?

1 inch in diameter

According to the NFPA apparatus equipped with tanks of less than 1,000 gallons must have a tank fill line of a least?

1 inch in diameter

According to the NFPA tanks greater than 1,000 gallons must be provided with at least how large of a tank fill line?

2 inch

Valve life may be extended by doing this.

Flushing the pump of debris

Which valve permits the full flow of water through a line with a minimum friction loss?

Ball valve

Circulator and booster line cooling valves are piped with what type of tubing?

Small diameter copper tubing with very limited flow capability

What type of valves are normally used on large diameter intakes and discharges?

Gate or butterfly valves

What type of valves are normally used on large diameter intakes and discharges?

Gate or butterfly valves

Butterfly valves are most commonly operated by what type of handles?

Quarter-turn handles

NFPA states that all intakes or discharges that are 3 inches or greater to be equipped with what type of acting valve controls? How long to open or close the valve?

Slow acting


3 seconds or more

Failure to close all of the drains on the fire pump may?

Result in inability to prime during drafting

A pressure control device on a fire apparatus pumping system must operate within 3-10 seconds after the discharge pressure rises and restricts the pressure from exceeding how much pressure above the set level?

30 psi

In relief valves, when the pump discharge pressure rises higher than allowed by the pilot valve setting, the spring in the pilot valve compresses. This action allows the needle valve to move in which direction? Causing water to dump back into the pump intake.

To the left

The most common relief valve uses what?

Spring-controlled pilot valve

The most common relief valve uses what?

Spring-controlled pilot valve

It is generally recommended that the intake relief valves be set to open when the intake pressure rises more than what psi above the necessary operating pressure?

10 psi

Newer pumpers with electronic governors use a pressure sensing element that is connected to the discharge manifold:

Pressure transducer

The electronic governor features cavitation protection by returning the engine to idle when intake pressure drops below what psi?

30 psi

Oil reservoir for the priming pump is often mounted higher than the pump itself, a vent hole is provided to break the siphon action as the tank drains. This vent must be checked frequently for?

Dirt and debris

Oil reservoir for the priming pump is often mounted higher than the pump itself, a vent hole is provided to break the siphon action as the tank drains. This vent must be checked frequently for?

Dirt and debris

The preferred engine speed for priming is in the range of?

1,000-1,200 RPMs

Exhaust primers are found on what type of pumpers?

Skid-mounted pumps


Older fire apparatus

With vacuum primers, what type of valve must be installed to prevent water from a primed pump from being drawn into the engine manifold?

Float valve

With vacuum primers, what type of valve must be installed to prevent water from a primed pump from being drawn into the engine manifold?

Float valve

This type of primer works best at idle speed and low engine RPM

Vacuum primer

With vacuum primers, what type of valve must be installed to prevent water from a primed pump from being drawn into the engine manifold?

Float valve

This type of primer works best at idle speed and low engine RPM

Vacuum primer

This type of primer to create a vacuum works at high RPMs

Exhaust primer

This type of primer uses a compressor to supply an airline to a jet pump that creates a Venturi Effect that primes the pump using no moving parts or lubricants

Air primer

This type of primer uses a compressor to supply an airline to a jet pump that creates a Venturi Effect that primes the pump using no moving parts or lubricants

Air primer

The master intake is calibrated from between what psi of positive pressure?

0-600 psi

This type of primer uses a compressor to supply an airline to a jet pump that creates a Venturi Effect that primes the pump using no moving parts or lubricants

Air primer

The master intake is calibrated from between what psi of positive pressure?

0-600 psi

The master intake is measured between what inches of mercury on the negative side?

0-30 inches of mercury (vacuum)

When vacuum reading reaches how many inches of mercury indicating the pump is nearing its capacity and is not able to supply additional lines?

20 inches

What is the tachometer?

Displays engine speed in revolutions per minute

This meter display indicates the battery condition and measures the drops in voltage when electrical accessories are used

Voltmeter

What is another name for a throttle knob?

Vernier

What are the two types of auxiliary cooling devices?

Marine type


Immersion type

IFSTA recommends chocking the wheels of truck every time the driver does what?

Exits the cab

IFSTA recommends chocking the wheels of truck every time the driver does what?

Exits the cab

What three type of valves are used to circulate water back into the tank to prevent pump from overheating

Booster cooling valve


Bypass valve


Circulator valve

During pumping operations, what pressure must be maintained at all times at the master intake?

20 psi

Executing a reverse lay is a common method for setting up water supply using what size hose as a supply line?

Medium diameter hose

Use what type of adapters at the hydrant and the pump panel to execute a reverse lay using hose with threaded couplings if the hose bed has been set up for a forward lay?

Double female at hydrant


Double male at pump panel

Use what type of adapters at the hydrant and the pump panel to execute a reverse lay using hose with threaded couplings if the hose bed has been set up for a forward lay?

Double female at hydrant


Double male at pump panel

These type of valves prevent water from entering the tank under pressure from the pump intake.

Check valves

After transitioning to an external water supply, the driver must then do what?

Close the tank-to-pump valve

When the pumper is discharging water, the intake is displaying what type of pressure?

Residual pressure

When a pump is connected to a hydrant and is not discharging water, the pressure shown on the gauge is what type of pressure?

Static pressure

With an atmospheric pressure at sea level of 14.7 psi, a partial vacuum of -2 psi is measured on the intake pressure gauge as 4 inches of mercury. This causes the water to rise how many feet into the intake hose from the surface of the water?

4.6 feet

In a city located 5,000 feet above sea level, the atmospheric pressure is?

12.2 psi

Most pumps are able to develop a vacuum capacity of how many inches of mercury?

22 inches

What are three indications of cavitation?

Lack of reaction on the pressure gauge to increase in the throttle


Noise like gravel passing through pump


Pressure gauge fluctuates and streams pulsate

How many inches of water must be all around the strainer for deployment?

24 inches

In a floating strainer, that strainer only take in water through how many sides?

One side

Low level strainers can draft down to a depth of how many inches?

2 inches

Low level strainers can draft down to a depth of how many inches?

2 inches

What water temperatures may adversely impact the ability of the pump to reach capacity?

Below 35


Above 90

All fire pumps are rated to pump their capacity at how many feet of lift?

10 feet

A pump in good working order can lift how many feet of water max?

25 feet

To create an effective fire stream, a lift of no grater than how many feet must be created?

20 feet

At a lift of 20 feet, what percent capacity is the pump working at?

60%

It is desirable to lay out an extra how many feet of supply line to set up at a draft location. Where the lift will be lower and more water can be supplied?

100 feet

During drafting, any deviation from the normal engine temperature is a sign for what?

Another pumper may need to be brought in to continue the drafting operation

When supporting a sprinkler system, multistage pumps should be operated in what transfer valve position?

Parallel (volume)

For standpipes, do not use pump discharge in excess of how much psi? Unless the standpipe system, hose, and appliances have been designed to function under high pressures

185 psi

What is the difference in elevation. Between the surface of the static water supply and the center of the pump intake?

Lift

What type of vacuum is the pressure in the intake hose and in the pump drops lower than the atmosphere pressure resulting in water being forced into the pump?

Partial vacuum

For every 1,000 feet of altitude, the atmospheric pressure decreases by how much?

0.5 psi

A valve installed at the standpipe connection that is designed to reduce the amount of water pressure at the discharge usually at 100 psi

Pressure-reducing valve

At sea level what is the height theoretical lift?

33.9 feet

At sea level what is the height theoretical lift?

33.9 feet

What is the height of maximum lift?

25 feet

Dependable lift is the height of what?

14.7 feet

All fire department pumpers are rated for a minimum lift of 10 feet from the center of the pump to the surface of the water through how many feet of hard suction?

20 feet of hard intake

All fire department pumpers are rated for a minimum lift of 10 feet from the center of the pump to the surface of the water through how many feet of hard suction?

20 feet of hard intake

All fire department pumpers are rated when drafting the strainer is 2 feet submerged in a water depth of what?

4 feet

A pump may only deliver 70% of its capacity if lift is increased by how many feet?

5 feet

A pump may only deliver 70% of its capacity if lift is increased by how many feet?

5 feet

A pump may only deliver 60% of its capacity at how many feet of a lift?

20 feet

Floating pumps placed in an adequate water source can develop and maintain a flow of up to how many GPMs?

500 GPM

Low level strainers may be used for water as shallow as how many feet?

1 foot

Low level strainers may be used for water as shallow as how many feet?

1 foot

Low-level strainers are commonly used to draft from portable water tanks and may draw water as shallow as how many inches?

1-2 inches

If an adequate draft cannot be established due to clogging at the strainer, what can you do with tank water to dislodge the debris?

Back flush

This static water supply source is normally used for agricultural purposes or domestic, some are specifically constructed and placed for fire department use

Cisterns

This static water supply source is normally used for agricultural purposes or domestic, some are specifically constructed and placed for fire department use

Cisterns

Cisterns range in sizes from?

10,000 - 100,000 gallons

Water storage receptacle that is usually underground and may be supplied by a well or rainwater runoff

Cistern

Private water storage tanks can be stored in ground and can be elevated and range in from what sizes?

Several hundred to tens of thousand of gallons of water

Agricultural irrigation systems in some jurisdictions may flow in excess of how many GPMs?

1,000 GPM

Agricultural irrigation systems in some jurisdictions may flow in excess of how many GPMs?

1,000 GPM

These irrigation systems generally supply water via open canals and portable pipes

Agricultural irrigation systems

Agricultural irrigation systems in some jurisdictions may flow in excess of how many GPMs?

1,000 GPM

These irrigation systems generally supply water via open canals and portable pipes

Agricultural irrigation systems

Which type of apparatus can be involved in relay pumping?

Any with an adequate pump

Water supply pumpers in a relay should be the apparatus with the largest pumping capacity

Source pumpers

For relay, a hose tender may carry how much large diameter hose?

A mile or more

For relay, a hose tender may carry how much large diameter hose?

A mile or more

Large diameter hose can be what size to what in diameter?

3.5 - 6 inches

In a relay operation, the overall capacity of the system is determined by?

Smallest pump


Smallest diameter hose used

In a relay operation, the overall capacity of the system is determined by?

Smallest pump


Smallest diameter hose used

It is advisable for drivers to maintain an intake pressure of what as a relay pumper?

20-30 psi

In a relay operation, the overall capacity of the system is determined by?

Smallest pump


Smallest diameter hose used

It is advisable for drivers to maintain an intake pressure of what as a relay pumper?

20-30 psi

In a relay, apparatuses in relay and attack should be operating in which mode if they have pressure governors?

Pressure RPM mode

For relay pumpers equipped with an adjustable intake relief valve, they should be set to what?

10 psi above static and discharge pressure to which they are attached to

Attack pumpers in a relay operation with an adjustable intake relief valve should be set between what pressure?

50-75 psi

Most water shuttles require at least how many pumpers for water supply?

2 pumpers

Most water shuttles require at least how many pumpers for water supply?

2 pumpers

For water shuttle operators Marion’s, water tenders must be designed to be filled at a rate of at least what?

1,000 GPMs

For water tenders, vehicle weight restrictions generally limit single rear axle apparatus to a maximum capacity of how many gallons?

2,000 gallons

For apparatus greater than how many gallons, tandem rear axles, tri-axles, or semi-trailers are required

2,000 gallons or more

A vacuum tender is able to self fill from a static water source at a rate of up to 2,000 GPM with a lift of up to how many feet?

22 feet

A vacuum tender is able to self fill from a static water source at a rate of up to 2,000 GPM with a lift of up to how many feet?

22 feet

A vacuum tender is capable of discharging its water tank at a rate of how many GPMs?

1,750 GPM

NFPA 1901 requires that water be capable of being dumped from what sides of apparatus in water shuttle operations?

Left, right and rear

NFPA 1901 requires that water be capable of being dumped from what sides of apparatus in water shuttle operations?

Left, right and rear

Some apparatus equipped with front dump valve for water shuttle operations do not meet what GPM flow requirement?

1,000 GPM

In water shuttles, the use of gravity dump uses a how many inches piping ?

8 inches or larger

In water shuttles, the use of gravity dump uses a how many inches piping ?

8 inches or larger

In water shuttle ops, there are two large tank discharges in use on water tenders?

Gravity dump


Jet-assisted dump

Onboard tank of water tenders must avoid a sudden pressure failure of the tank during quick-filling operations by having what?

Vents

This allows free movement of water at the bottom of the tank and movement of air at the top during rapid filling or unloading

Baffles

This allows free movement of water at the bottom of the tank and movement of air at the top during rapid filling or unloading

Baffles

NFPA requires all tenders to have the capability to dump at minimum average flow rate of 1,000 GPM for the first what percent of it’s tank capacity?

90 %

Any portable tank used for water shuttle ops should be set up on a surface that is as level as possible and have capacity of at least how many gallons larger than the water tank on the apparatus that will supply it?

500 gallons

In water shuttle ops, incidents that require a flow rate of how many GPM are best served by multiple tank operation?

300 GPM

In water shuttle ops, incidents that require a flow rate of how many GPM are best served by multiple tank operation?

300 GPM

In water shuttle ops, most multi-tank operations use how many portable tanks?

2-5 portable tanks

In water shuttle ops, the jet siphon hose line is typically what size?

1.5 inch

In water shuttle ops, operations that require more than three tanks and jet siphons and flows over 500 GPM, what should be used to transfer water to the tank supplying the attack pumper?

Parallel jet siphons

During water shuttle ops, when does the timer start and end?

Starts when dump valve is opened


Ends when tender is back in position at portable tank

Most water tenders dump how much percent of their load before leaving the dump site?

90%

Most water tenders dump how much percent of their load before leaving the dump site?

90%

Shuttle operations are divided into two time elements:

Travel time


Handling time

Most water tenders dump how much percent of their load before leaving the dump site?

90%

Shuttle operations are divided into two time elements:

Travel time


Handling time

Class B fuels are divided in two categories:

Hydrocarbons - crude oil, fuel oil, gasoline


Polar solvents - alcohol, acetone, ketones, and esters

Most water tenders dump how much percent of their load before leaving the dump site?

90%

Shuttle operations are divided into two time elements:

Travel time


Handling time

Class B fuels are divided in two categories:

Hydrocarbons - crude oil, fuel oil, gasoline


Polar solvents - alcohol, acetone, ketones, and esters

Hydrocarbons have a specific gravity of?

Less than one and will float on water

Many modern fuels, including gasoline are blended with up to what percent of solvent additives and should be treated as polar solvents?

15 %

Most fire fighting foam concentrates are formulated to mix with what percentage of water?

94 - 99.9%

Most fire fighting foam concentrates are formulated to mix with what percentage of water?

94 - 99.9%

Foam is proportioned in four ways :

Batch mixing


Premixing


Induction


Injection

Four ways foam is stored

Pails


Barrels


Totes


Apparatus tanks

Four ways foam is stored

Pails


Barrels


Totes


Apparatus tanks

Pails of foam

5 gallons

Four ways foam is stored

Pails


Barrels


Totes


Apparatus tanks

Pails of foam

5 gallons

Barrels of foam

55-gallon barrel

Four ways foam is stored

Pails


Barrels


Totes


Apparatus tanks

Pails of foam

5 gallons

Barrels of foam

55-gallon barrel

Totes of foam

275 gallon container

Apparatus tanks with foam

20- 200 gallons


Foam pump or tender can carry 8,000 gallons

Chemical that lowers the surface tension of a liquid; allows water to spread more rapidly over the surface of Class A fuels and penetrate organic fuels

Surfactant

Chemical that lowers the surface tension of a liquid; allows water to spread more rapidly over the surface of Class A fuels and penetrate organic fuels

Surfactant

The shelf life of properly stored Class A foam solution can be how long?

20 years

Class A foam concentrates may be mixed with what percentages?

0.1 - 1 %

Fire attack and overhaul with standard fog nozzle using foam percentage?

0.2-0.5 percent concentrate

Fire attack and overhaul with standard fog nozzle using foam percentage?

0.2-0.5 percent concentrate

Exposure protection with standard fog nozzle using Class A Foam

0.5-1 percent concentrate

Fire attack and overhaul with standard fog nozzle using foam percentage?

0.2-0.5 percent concentrate

Exposure protection with standard fog nozzle using Class A Foam

0.5-1 percent concentrate

Any application with air aspirating foam nozzles using Class A Foam percentage?

0.3-0.7 percent concentrate

Any application with compressed air foam systems (CAFS) Class A Foam percentage?

0.2-0.5 percent concentrate

Application rate refers to the minimum amount of foam solution applied to a fire is rated by?

Per minute


Per square foot

Class B Foam consists of what?

Synthetic - fluorosurfactants


Proteins base

Class B Foam should be stored in cool areas to max shelf life, what is shelf life for protein and synthetic foam?

Protein - 10 years


Synthetic - 20-25 years

AFFF and fluoroprotein can be mixed together? T/F?

True

Class B Foams are mixed in proportions from what to what percentage?

1-6 %

What are the percentage ranges for hydrocarbons and polar solvents fuels with Class B Foam?

Hydrocarbons - 1-3%


Polar solvents - 3-6%

Class B Low Foam expansion contains air/solution ratio of up to?

20:1

Class B Low Foam expansion contains air/solution ratio of up to?

20:1

Class B medium foam expansion has the air/solution ratio to what range?

20:1 - 200:1

Class B Low Foam expansion contains air/solution ratio of up to?

20:1

Class B medium foam expansion has the air/solution ratio to what range?

20:1 - 200:1

Class B high GPM expansion has air/solution ratio to what range?

200:1 - 1000:1

Fluoroprotein Foam is a combination of what?

Protein based foam and synthetic foam

Fluoroprotein Foam is a combination of what?

Protein based foam and synthetic foam

Fluoroprotein foam may be made alcohol resistant with the addition of what?

Ammonia salts suspended in organic solvents

Alcohol resistive properties added in the fluoroprotein foam will be effective for how many minutes offering high-water retention and resistance to heat?

15 minutes

Regular protein foams over good heat stability and?

Burn back resistance

AFFF should be applied how to the fuel product in order to allow the membrane to form?

Gently

The pressure at the discharge side of the eductor must not exceed what percent of the eductor inlet pressure?

70%

Eductors must be properly maintained after each use in order to ensure readiness, use a bucket of water to immerse foam pickup tube, letting it induct water for at least how long?

1 minute

The foam concentrate inlet to the eductor should be no more than how many feet above the liquid surface of the foam concentrate?

No more than 6 feet

Some master stream foam nozzles are capable of delivering how many GPMs?

14,000 GPMs

Some master stream foam nozzles are capable of delivering how many GPMs?

14,000 GPMs

Jet Ration controller is a type of inline eductor that may be used to supply foam concentrate to a self-educting master stream, it may be located at distances of up to how many feet from the nozzle and how much elevation?

3,000 feet


50 feet elevation

Jet ratio controllers proportions the concentrate at what percent solution? Which it is further proportioned with water resulting in a discharge of what?

66.5%


3 % further discharged

With around-the-pump proportioners, when in the open position, the valve allows approximately how many GPMs to flow through the piping?

10-40 GPMs

With around-the-pump proportioners, when in the open position, the valve allows approximately how many GPMs to flow through the piping?

10-40 GPMs

Class A Foam solutions do not retain their foaming properties when mixed in water for more than how many hours?

24 hours

With around-the-pump proportioners, when in the open position, the valve allows approximately how many GPMs to flow through the piping?

10-40 GPMs

Class A Foam solutions do not retain their foaming properties when mixed in water for more than how many hours?

24 hours

With CAFS, 2 cubic feet per minute of airflow per gallon per minute of foam solution produces a dry foam of up to how many GPM of foam solution? What expansion ratio is this?

100 GPM


10:1 expansion ratio

With around-the-pump proportioners, when in the open position, the valve allows approximately how many GPMs to flow through the piping?

10-40 GPMs

Class A Foam solutions do not retain their foaming properties when mixed in water for more than how many hours?

24 hours

With CAFS, 2 cubic feet per minute of airflow per gallon per minute of foam solution produces a dry foam of up to how many GPM of foam solution? What expansion ratio is this?

100 GPM


10:1 expansion ratio

Most structural and wildland suppression operations conducted with CAFS use airflow rate of what range cubic feet per minute?

0.5-1 cubic feet of foam solution per minute

What are the two basic types of medium and high expansion foam generators?

Water aspirating


Mechanical blower

The two basic categories of testing are grouped as?

Preservice testing


Performance testing

PRESERVICE testing includes which tests?

Manufacturer test


Pump certification test


Acceptance test

Which testing is available for fire department personnel to be present?

Acceptance testing

Manufacturer is required to perform two specific tests in addition to the pump certification test, which are they?

Road test


Hydrostatic test

The apparatus must accelerate to 35 mph from a standing start within how many seconds?

25 seconds

Apparatus must achieve at least a top speed of what?

50 mph

Apparatus must achieve at least a top speed of what?

50 mph

The apparatus must come to a full stop from 20 mph within how many feet?

35 feet

With the the exception of the tank to fill and tank to pump lines on the side of the valves, are subjected to a minimum hydrostatic test pressure of what psi for how many minutes?

500 psi


10 minutes

In jurisdictions that have an elevation higher than how many feet must perform an engine overload test as part of acceptance testing?

2,000 feet

When must a pumper go through a performance test?

Annually


Pump repair


Power train repair

The air temperature when pump performance test should be between what?

0-110 degrees

The air temperature when pump performance test should be between what?

0-110 degrees

The water temperature for pump performance test should be between what?

35-90 degrees Fahrenheit

With pumper performance tests , the barometer must be at least how many inches of mercury when corrected to sea level?

29 inches

With pumper performance tests , the barometer must be at least how many inches of mercury when corrected to sea level?

29 inches

During the pump performance test, the water level from static source must be how deep and the strainer must be submerged how deep?

Static source must be 4 ft deep


Strainer must be submerged 2 ft

During a pump performance test pumps rated at 1,500 GPMs or less must have a max distance from centerline of pump intake above the surface water of? How about for pumps rated for 2,000GPM?

10 foot max lift


6 foot max lift

During performance test, you must stop the test and replaced the hose if the couplings of the hose have moved away from the scribed mark more than how many inches?

3/8 of an inch

Performance tests are performed in four different pressures, what are they?

150 psi


165 psi


200 psi


250 psi

NFPA 1911 specifies that all gauges used for service testing must be calibrated within how many days of the testing?

60 days

During performance test, a gauge to determine pump discharge with what range?

0-400 psi

A flowmeter indicates flow in gallons per minute, within plus or minus how much percent of accuracy?

3%

During performance tests, were hearing protection if noise levels have the potential to reach or exceed how many decibels?

90 decibels

Pump apparatus needs to be removed from service if pump fails to reach how many inches of mercury?

22 inches

NFPA1911 states that fire pumps of 1,250 GPM capacity must achieve prime in how many seconds?

30 seconds or less

NFPA1911 states that fire pumps of 1,250 GPM capacity must achieve prime in how many seconds?

30 seconds or less

NFPA 1911 states pumps rated at 1,500 GPM must reach prime within how many seconds?

45 seconds

If a hand held pitot gauge is used for flow test, the tip of gauge must be how far from nozzle end?

1.5 nozzle diameter

The difference in readings between the flowmeter and the pitot gauge must not be more than what percent?

10 percent

Any apparatus that achieves less than what percent during performance testing may be placed out of service and tested again or given lower rating based on results?

90 percent

What are the four methods for testing a foam proportioning system for calibration accuracy?

Foam concentrate displacement method


Foam concentrate pump discharge volume method


Foam solution refractivity testing


Foam solution conductivity testing

This foam method checks the volume of foam concentrate that is drawn through the system to determine the accuracy of the proportioning equipment

Foam concentrate displacement method

Certain direct injection type proportioning systems may use this method to check the volume of foam concentrate that is proportioned into a fire stream:

Foam concentrate pump discharge volume method

Certain direct injection type proportioning systems may use this method to check the volume of foam concentrate that is proportioned into a fire stream:

Foam concentrate pump discharge volume method

Tests the quality of a foam solution after it has been created by a foam proportioning system.

Foam solution refractivity testing

Certain direct injection type proportioning systems may use this method to check the volume of foam concentrate that is proportioned into a fire stream:

Foam concentrate pump discharge volume method

Tests the quality of a foam solution after it has been created by a foam proportioning system.

Foam solution refractivity testing

A device used to measure the amount of foam concentrate in he solution by measuring the velocity of light that travels through the foam solution:

Refractometer

Certain direct injection type proportioning systems may use this method to check the volume of foam concentrate that is proportioned into a fire stream:

Foam concentrate pump discharge volume method

Tests the quality of a foam solution after it has been created by a foam proportioning system.

Foam solution refractivity testing

A device used to measure the amount of foam concentrate in he solution by measuring the velocity of light that travels through the foam solution:

Refractometer

Testing to ensure the quality of synthetic based foam produced by various foam proportioning systems and equipment:

Foam solution conductivity testing

Base rails on aerial are called?

Beams

Top rails on an aerial are called?

Hand rails

Aerials designed with what feature provide greater strength than older designs?

K-bracing

What are the four main components of a hydraulic system?

Actuators


Hydraulic fluid


Hydraulic pump


Hydraulic reservoir

What are the four main components of a hydraulic system?

Actuators


Hydraulic fluid


Hydraulic pump


Hydraulic reservoir

In hydraulic system, this transforms power into mechanical force:

Actuator

In hydraulic system, this is the medium by which the system transmits force:

Hydraulic fluid

Depending on the manufacturer of the aerial apparatus, hydraulic fluid may be under pressure of up to?

3,500 psi or more

The series of tubes and hoses that supply the hydraulic system are aircraft type, steel braided hose that can withstand how much pressure from normal operating pressure?

Four times greater than normal operating pressure

In a hydraulic system, this valve prevents unintentional or undesirable motion of the device from its established position:

Counterbalance valves

In a hydraulic system, this valve prevents unintentional or undesirable motion of the device from its established position:

Counterbalance valves

This is a three way valve that directs fluid to either the stabilizer control valves or the aerial device control valves

Selector valve

In a hydraulic system, this valve prevents unintentional or undesirable motion of the device from its established position:

Counterbalance valves

This is a three way valve that directs fluid to either the stabilizer control valves or the aerial device control valves

Selector valve

Hydraulic cylinders used for elevation and telescopic control of the aerial device and for opening stabilizers are what?

Double acting cylinders capable of receiving oil under pressure from both sides of the piston

How many rotary systems are on an aerial apparatus?

2

How many rotary systems are on an aerial apparatus?

2

What do each rotary devices on aerial do?

Rotates aerial device through pinion drive and ring


Operates on a winch drive to extend and retract aerial device

Hydraulic cylinders used to lift the aerial device from its bed to working position:

Hoisting cylinders

In a hydraulic cylinder, the pivoting end of the piston rod that is connected to the anchor ear by the heel pin

Trunnion

Normal hydraulic pressure on an aerial is between?

850-3,000 psi

To lower a ladder from an aerial manually, you can bleed the pressure from the cylinder through what?

Bleed-down valve

To lower a ladder from an aerial manually, you can bleed the pressure from the cylinder through what?

Bleed-down valve

Aerial ladders made in North America, the fully extended ranges from?

50-137 ft

Three distinct elevating platforms are?

Aerial ladder platform


Telescoping aerial platform


Articulating aerial platform

What is the required minimum floor area of a platform?

14 square feet

What is the required minimum floor area of a platform?

14 square feet

On a platform, they must have a rail completely enclosing the floor area with no opening under the railing greater than what?

24 inches

On a platform a kickplate is required at floor level and should be how high?

4 inches

NFPA requires nozzle below platform to flow at?

75 GPMS

NFPA requires nozzle below platform to flow at?

75 GPMS

All elevating platforms must have a minimum load capacity of? With water in piping system what is the load capacity?

750 lbs dry


500 lbs full load

Elevated platforms that are 110 feet or shorter should be able to rotate from the bedded position to max elevation and extension in how many seconds?

150 seconds

There is no time limit for full extension and rotation for what sized elevating platform?

110feet or higher

The working height for aerial ladders is measure from ?

The ground to the highest ladder rung

The working height for aerial ladders is measure from ?

The ground to the highest ladder rung

The working height of all platforms is measured from?

Ground to the top surface of the highest platform handrail

The working height for aerial ladders is measure from ?

The ground to the highest ladder rung

The working height of all platforms is measured from?

Ground to the top surface of the highest platform handrail

Aerial ladder platforms range in size between what?

85-110 feet

The working height for aerial ladders is measure from ?

The ground to the highest ladder rung

The working height of all platforms is measured from?

Ground to the top surface of the highest platform handrail

Aerial ladder platforms range in size between what?

85-110 feet

What configuration is the most common ladder platform in service today?

Straight chassis, three axle, rear mounted aerial device

What are aerial and telescoping platforms not intended for?

Climbing

In North America, telescoping aerial platforms range from?

75 - 100 feet

A mechanically applied rivet used in the construction of some aerial devices, they can only be removed by drilling

Huck bolt

Telescoping aerial platforms are made of what two constructions?

Box-beam


Tubular truss beam

Telescoping aerial platforms are made of what two constructions?

Box-beam


Tubular truss beam

Standard articulating aerial platforms range in height of?

55 - 85 feet

Telescoping aerial platforms are made of what two constructions?

Box-beam


Tubular truss beam

Standard articulating aerial platforms range in height of?

55 - 85 feet

Water towers are capable of flows ranging from?

1,000-5,000 gpm

Telescoping aerial platforms are made of what two constructions?

Box-beam


Tubular truss beam

Standard articulating aerial platforms range in height of?

55 - 85 feet

Water towers are capable of flows ranging from?

1,000-5,000 gpm

Common sizes for water towers range in height?

50-130 feet

On most aerial devices, the third, fourth, and fifth sections of the aerial devices are extended and retracted by a system of what?

Cable and pulleys

The cables and pulleys used to extend and retract sections of aerial are made of high strength steel called?

Plow steel

This does not allow aerial device to rotate over the side of the apparatus where the stabilizers are not fully extended:

Rotation interlock (Short jack)

This doesn’t allow cab to raise if the engine is running:

Cab interlock

This doesn’t allow cab to raise if the engine is running:

Cab interlock

What are the two types of pre-piped waterway systems on aerials.

Bed ladder systems


Telescoping waterway systems

What is the average diameter range of a bed ladder pipe?

3-3.5 inches

What is the minimum internal diameter of piping for a telescoping piping system?

4 inches

What is the minimum internal diameter of piping for a telescoping piping system?

4 inches

Most telescoping water systems are capable of flows of up to?

1,000 GPMs

Detachable ladder pipes are typically limited to flows of less than?

750 GPM

Hoses advanced up a ladder should be secured by hose straps a minimum of how many locations?

2-3 locations

Most ladders with detachable ladder pipe appliances restrict the sideways movement of the nozzle to about how any degrees either side of center?

15 degrees

The piercing nozzle at the end of an aerial device has the capabilities of flowing water of up to?

300 GPM

Portable generators typically have how many volt capabilities?

110 volts


220 volts

Inverters convert vehicle’s 12 or 24 volt DC current into what?

110 or 220-volt AC

Common recommended lengths of electrical power chords should not exceed?

200 feet

With hydraulic tools, hose distances of what may have a negative effect on tool operation?

100 feet or more

Extension ladders that are 40 feet in length or longer are called? What are they equipped with for stability?

Called pole ladders


Staypoles or tormentors for stability

Loss control on a fire starts when?

The minute companies leave the station and continues throughout the incident

NFPA 1901 requires aerial apparatus to be equipped with what items to assist with salvage and overhaul efforts?

Multiple salvage covers


2 scoop shovels

Tiller axle is a steering axle, steering wheel free play must not exceed how many inches on a 20 inch wheel?

2 inches

Tiller axle is a steering axle, steering wheel free play must not exceed how many inches on a 20 inch wheel?

2 inches

On tiller axle, steering wheel free play must not exceed how many degrees on steering wheel?

10 degrees

Hydraulic fluid level must be checked when the system is?

Cold

If truck begins to lean toward one side after stabilizers have been deployed, what may be the problem?

Leak

If truck begins to lean toward one side after stabilizers have been deployed, what may be the problem?

Leak

What is operating a hydraulic pump without allowing flow through the system which can generate tremendous heat and pressure and can damage components :

Deadheading

If truck begins to lean toward one side after stabilizers have been deployed, what may be the problem?

Leak

What is operating a hydraulic pump without allowing flow through the system which can generate tremendous heat and pressure and can damage components :

Deadheading

Apparatus testing is grouped into two basic categories :

Pre service test


Service test

Method of testing metal objects that does not subject them to stress related damage :

Nondestructive testing

Method of testing metal objects that does not subject them to stress related damage :

Nondestructive testing

Nondestructive testing is conducted when? X4

Every 5 years


Subjected to unusual stress or loads


Major repairs or overhauls


After accidents

When 2 aerials respond to an incident, what are their locations to a building according to arrival order?

1st takes front of building


2nd takes rear or side of building

What are the two impacts of positioning aerial with the front of apparatus up-hill?

Rear tires off ground, less resistance to sliding downhill


Rear compartments are difficult to reach after leveling

What are the two impacts of positioning aerial with the front of apparatus up-hill?

Rear tires off ground, less resistance to sliding downhill


Rear compartments are difficult to reach after leveling

What are the two impacts of an aerial positioning with the rear of the apparatus up-hill?

It will be easier to reach ground with a platform operating off rear


Front tires will be lifted off ground, causing frame rails to sag and making device difficult to stow properly

Electricity will arc across a gap as large as how many feet?

10 feet

10 feet clearance between aerial device and overhead voltage lines energized from the range of?

600-50,000 volts

How many feet of clearance between an aerial device and high-voltage line over 50,000 volts?

50 feet

The new standard from OSHA between aerial and overhead voltage lines of less than 350 kilovolts is how many feet?

20 feet

The apparatus is most stable when the aerial device is operated where?

Directly over front or rear of the vehicle

The apparatus is most stable when the aerial device is operated where?

Directly over front or rear of the vehicle

Greatest stability occurs when jackknifing cab of tractor trailer aerial device to how many degrees from vehicle being in-line?

60 degrees

When approaching building from uphill side, the apparatus should stop where from building?

Park past building and operate aerial device from the rear

When approaching building from uphill side, the apparatus should stop where from building?

Park past building and operate aerial device from the rear

When approaching building from down-hill side, apparatus should stop where?

Stop short of the building and operate aerial over the cab

On highways consider parking additional apparatus range of how many feet behind the shielding apparatus to act as an additional barrier between firefighters and flow of traffic?

150-200 feet

Most railroad companies advise that vehicles be kept at least how many feet from track?

25 feet

Where do you position tip of ladder device on aircraft wing?

Place tip of the device as if accessing a building roof

Where do you position tip of ladder device on aircraft wing?

Place tip of the device as if accessing a building roof

Where do you position tip off ladder device in doorway of aircraft?

Position tip as if accessing a building window

Straight jacks that extend down from the chassis

Post-type stabilizer

Straight jacks that extend down from the chassis

Post-type stabilizer

Stabilizers that extend straight away from the truck and have jacks that extend straight down to the ground

Box stabilizers

Straight jacks that extend down from the chassis

Post-type stabilizer

Stabilizers that extend straight away from the truck and have jacks that extend straight down to the ground

Box stabilizers

Stabilizers that extend down and away from the chassis at an angle

A-Frame, scissor, or X-style stabilizers

Pneumatic systems require anywhere from home much pressure range for the PTO to be operated?

50-140 psi

Pneumatic systems require anywhere from home much pressure range for the PTO to be operated?

50-140 psi

Most new models of aerial apparatus are equipped where it is acceptable to engage the PTO system when the transmission is in neutral?

Hot shift

Chocks should be placed in front or behind a wheel and allowing how much space in between wheel and chock in case wheel moves?

1 inch

Stabilizer pads are usually how large?

24X24

Stabilizer pads are usually how large?

24X24

There are two ways that the truck can be uneven, laterally or longitudinally. Which of the two is easiest to correct?

Lateral unevenness

Stabilizer pads are usually how large?

24X24

There are two ways that the truck can be uneven, laterally or longitudinally. Which of the two is easiest to correct?

Lateral unevenness

Correction of lateral unevenness is possible of grades of up to what percent?

5%

Stabilizer pads are usually how large?

24X24

There are two ways that the truck can be uneven, laterally or longitudinally. Which of the two is easiest to correct?

Lateral unevenness

Correction of lateral unevenness is possible of grades of up to what percent?

5%

A slope of 5% means that their is a rise in terrain of how many feet per 100 feet?

5 feet

Aerial devices operating on grades will have restricted loads of up to how much the normal operating load on device?

1/2 the normal load

What prevents the flow of hydraulic fluid into or out of the stabilization system while the aerial device is in use?

Interlock

What prevents the flow of hydraulic fluid into or out of the stabilization system while the aerial device is in use?

Interlock

Which valves prevent the movement of hydraulic fluid within the stabilizing system?

Holding valves

Holding valves are activated on the stabilizing system once the selector switch is moved to where?

Aerial position

Driver should never position the vehicle with tractor and trailer at an angle greater than how many degrees?

90 degrees

Standard on Life Safety Rope and Equipment for Emergency Services

NFPA 1983

Because of forces being generated, all movements of an aerial device must be slow,smooth and controlled also know as?

Feathering

Because of forces being generated, all movements of an aerial device must be slow,smooth and controlled also know as?

Feathering

There are two type of articulating aerial apparatus :

Water towers


Aerial platforms

What is the quick guideline for a quick ladder pipe use?

75-80-80


75 degree elevation


80% extended


80 psi

What is the quick guideline for a quick ladder pipe use?

75-80-80


75 degree elevation


80% extended


80 psi

Newer ladder pipes offer a how many degree sweep of movement?

180 degree

The limit of ice build up allowed by NFPA 1901 on apparatus is how much?

1/4 inch on all surfaces

15-24 mph

Small trees in motion; whitecaps visible on ponds and small lakes

15-24 mph

Small trees in motion; whitecaps visible on ponds and small lakes

25-31 mph

Large tree branches in motion; whistling heard in utility wires

15-24 mph

Small trees in motion; whitecaps visible on ponds and small lakes

25-31 mph

Large tree branches in motion; whistling heard in utility wires

32-38 mph

Whole trees in motion; inconvenience felt walking against wind

15-24 mph

Small trees in motion; whitecaps visible on ponds and small lakes

25-31 mph

Large tree branches in motion; whistling heard in utility wires

32-38 mph

Whole trees in motion; inconvenience felt walking against wind

39-54 mph

Twigs break off trees; walking against the wind is generally impeded: minor building damage

In freezing wether, draining valves must be kept in what position to avoid damage?

Open

1 cubic inch of ice is how many pounds?

0.03 lb

Slowly extending and retracting the aerial device to remove accumulated ice is called?

Ice shrugging

Standard for the Inspection, Maintenance, Testing, and Retirement of In-Service Automotive Fire Apparatus

NFPA 1911

One type of aerial device suitable for below grade rescue operations is?

Three boom articulating platform

Successful communications for aerial operations include what three things?

Pre-Arrival communication


On Scene communication


Tactical Communication

What are the two advantages of positioning on a corner with aerial device?

Safe from collapse


Access to two sides of building

What are the two advantages of positioning on a corner with aerial device?

Safe from collapse


Access to two sides of building

Where should the tips of ladder be in a supported position?

Ladder should be positioned so both rails are evenly in contact with the supporting object

What are the two advantages of positioning on a corner with aerial device?

Safe from collapse


Access to two sides of building

Where should the tips of ladder be in a supported position?

Ladder should be positioned so both rails are evenly in contact with the supporting object

Where should the tips of ladder be in unsupported position?

Tip should be placed above the target spot to keep it from contacting the building

What is used to increase the overall strength of an extended device and greatly reduces the chance of failure?

Extension locks

Where should the ladder be placed at window sill when performing a rescue from window?

First rung even with the widow sill

Where should the ladder be placed at window sill when performing a rescue from window?

First rung even with the widow sill

When approaching a window with a platform, where should the platform be placed?

Top rail of the platform even with the window sill

When removing victims from a roof, the tip of the aerial ladder should be placed so at least how many feet extends above the edge of the roof?

6 feet

When removing victims from a roof, the tip of the aerial ladder should be placed so at least how many feet extends above the edge of the roof?

6 feet

When removing victims from a roof, the aerial platform should be placed where?

Bottom of platform is just above and over the edge of the roof

What is the best method used to carry a heavier person who is conscious down a ladder?

Knee-sit method

What is the best method used to carry a heavier person who is conscious down a ladder?

Knee-sit method

Water deflection performed with an aerial can be accomplished by positioning the aerial device so that the nozzle is about even with the bottom of the window. This position allows water to enter the area at what angle?

30 degree angle

Water adds weight to a structure at the rate of 2,000 pounds every how many GPMS?

250 GPM

When elevated master streams are used in a blitz attack, they should only be flowed long enough to do what?

Darken down the fire