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96 Cards in this Set
- Front
- Back
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What is a hydrostatic test?
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Pressuring the components to 5 times their rated capacity for at least 5 seconds.
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What is considered the max size for a portable extinguisher?
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5 gallons (42 lbs.)
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Alkaline Mixtures have been found to be effective against fires originating where?
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Cooking-related media
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Saponification happens only with __________ mixtures.
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Alkaline mixtures
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AFFF- produces what 2 things that form on the surface of a liquid fuel?
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Air Foam and Floating Film
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What is the primary disadvantage of using a dry chem fire extingisher?
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Clean up
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What was the first commercially produced dry chem agent?
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Sodium Bicarb
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What is the max distance from the hazard to the extingisher in a Class K fire?
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30 feet
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Extingisher hanging height...
greater than 40 lbs. less than 40 lbs. |
3 1/2 feet
5 feet |
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Extingishers are inspected _______?
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Monthly
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What type of extinguisher is the easiest to fill?
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Cartridge
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The Fire Alarm Control Unit (FACU) is usually referred to as _________.
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Alarm Panel
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What is the standard duration for standpipe and hose systems? Class 1, 2 and 3?
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30 min.
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Pumps used as priming pumps are known as_____________.
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Rotary Gear
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The 50% pump capacity test is conducted at a net pump pressure of ____ psi. for ____ min.
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250psi 10 min.
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Pumps that are commonly used as priming pumps are known as __________.
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Rotary Gear
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Spiral chamber of a centrifugal pump is called _________.
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Volute
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A ___________ valve is used to relieve pressure in hose lines.
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Drain
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A Relief Valve:
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Opens when pressure rises above the set pressure.
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A DE should prime a pump when operating _____________.
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from a static source.
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Apparatus equipped with water tanks less than 500 gallons must provide a flow rate of _____ gpm. Those with tanks larger than 500 gallons must provide ____ gpm.
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250 gpm 500 gpm
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the ___________ is the major component of the centrifugal pump because it provides velocity to the water.
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Impeller
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Flow Meters should be accurate to tolerance of ____%
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+ or - 3%
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Pressure Control Devices must operate within ________ sec. with an increase of 30 psi.
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3-10 sec.
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Approx. Wind Speed by eye?
white caps? Large branches, whistling of lines? Whole trees moving, inconvenience walking? Snapping trees, difficulty walking? |
15mph
25mph 32mph 39mph |
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Dry Barrel hydrants should be opened completely because:
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The drain valve is completely closed.
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______________ operation is operating a pump at its rated capacity.
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Parallel
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As a standard it is not good to reduce incoming supply pressure below ________ psi.
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20 psi
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Theoretically, the max distance a pump can lift water at sea level is ___ ft.
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33.8 feet
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In an auxillary cooling system, heat is transfered from the engine cooling water to the _____.
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Pump Water
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For drafting purposes, "lift" is measured from the _______ of the pump.
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Surface of water to center of the pump.
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A relief valve by passes excess water from the discharge side of the pump to the_______.
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Pump Intake
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One gallon of water weighs _____ lbs.
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8.33 lbs.
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A clean engine and functional parts permit proper ________ of an apparatus.
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Inspection
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Keeping a truck in a state of usefulness or readiness is known as:
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Maintenance
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T or F: For a ladder the water tank level is not a pre trip inspection.
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True
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Total Stopping Distance is the sum of what 2 time sets?
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DE Reaction Distance and Vehicle Braking Distance
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Apparatus stopping test:
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While going 20 mph the truck must stop in 35 ft.
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Apparatus speed test:
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0mph to 35mph in 25 seconds
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If the ladder has a fixed water system, it must be tested at the max pressure to achieve ______ at _____.
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1000 gpm at 100 psi.
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Regarding backing a ladder, from a roadway to a restricted space the current NFPA 1002 requires, _________________ degree right and left hand turns to be made.
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90 degree
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Many accidents are caused by:
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The DE misunderstaning the capabilites of the truck.
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In the diminishing clearence drill you must stop the truck within ____ inches from the cone.
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6 inches
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NFPA 1901 requires all ladders built after 1999 must carry a min. of _____ ft. of ground ladders.
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115 feet
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If the ladder is a Quint the ground ladders only have to be _____ ft. total.
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85 feet
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An inverter changes ___ power to ____ power.
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DC to AC
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During an annual pump test, a Quint should deliver ______ of its rated capacity at 150psi pump pressure for 20 min.
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100%
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The 50% annual pump test on a Quint is conducted at a net pump pressure of _____ psi. of _____ min.
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250psi for 10 min.
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Pumps on Quints should be Hydro Tested at _____ psi. for ______ min.
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250psi for 3 min.
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Hydraulic Systems for aerial devices use relief valves to :
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protect components that could be damaged.
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The ________ valve directs hydraulic fluid from one hydraulic circuit to another.
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Selector/Diverter
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The flow of hydraulic fluid within an aerial hydraulic circuit is controlled by _______.
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Valves
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Auxillary hydraulic pumps are used:
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in the event of main hydraulic pump failure.
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What type of cables are used for extension and retraction of aerial devices?
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Galvanized aircraft type cables.
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Stability of an aerial is tested on :
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both even and sloped surfaces.
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Hoisting cylinders are sometimes referred as __________ cylinders.
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Elevation
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According to NFPA 1901, the required min. floor area for elevating platforms is ______sq. ft.
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14 sq. ft.
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When testing for stability on sloped surfaces, the ladder is parked on a ______ slope.
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5 degree downward slope.
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When load testing an aerial the wind velocity should be ____ and the test area ______.
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less than 10 mph level and firm
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The operational test of a ladder should cover_____________.
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the range of actions required of the device.
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A FF stepping onto a ladder from a roof is considered what kind of load?
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Impact
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Breathing air systems on a ladder should be enough for ____ FF.
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2 FF
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Drift Ladder Test: Position of Ladder?
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to check the drop of the ladder caused by loss of dydraulic fluid pressure,
Full elevation, 10ft. extension |
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Hydrostatic Ladder Test: Position of Ladder
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The ladder must by full extended and fully elevated
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Ladder air systems should alarm when cylinders drop below ____%
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20%
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Hydraulic Fluid is used in elevation systems because it is :
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practically incompressible
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In a hydraulic system ______ , start, stop, regulate, and direct.
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Valves
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A "Hot-Shift" PTO system can be engaged when the main transmission is in ________.
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Neutral
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What prevents the flow of hydraulic fluid into or out of the stabilization system while the aerial device is in use?
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Interlock Feature
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What prevents the movement of fluid within the stabilization system?
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Holding Valves
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A complete inspection and testing of the aerial device should occure:
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at least every 5 years
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When the pressure is released on the stabilization system, the apparatus often drops ______.
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Quickly
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The first portion of the aerial device to be inspected should be the _________ and ______.
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Turntable and Torque Box
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Most modern ladders are designed to be operated in the supported or unsupported position.
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Unsupported Position
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The second aerial priority at an emergency is:
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Extension Protection
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Where should the ladder tip be for roof access and window rescue
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6 ft. above the roof and first rung even with the sill
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Which type of load is caused by wind impact on a ladder?
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Dynamic
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When positioning the ladder, what position should be avoided?
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Long extension, low angle
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Most ladders can work in winds at :
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35-40 mph
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When positioning the ladder:
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Rotate then Extend
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Which grade is the easiest to correct during stabilization?
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Lateral
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One way to judge correct deployment of stabilizers is to :
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watch the ladder's tires.
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The center of gravity on a ladder _______ as the ladder is rotated.
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Shifts
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On a ladder the least stable position of operation is :
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perpendicular to the chasis
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The purpose of the stabilizer pad is to provide:
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weight distribution for the stabilizer.
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The ______ stabilizer should be lowered first, when operation on a slope.
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Uphill
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Operate any aerial device, how?
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smooth and controlled
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When lowering an aerial device from a target, he operator should:
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Raise the tip first.
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The correct order of operation for any aerial device is:
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Raise, Rotate, Extend and lower
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The smaller ladder attached to the boom sections is primarily used for:
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as an escape for FF
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If a mechanical problem develops during an aerial operation and you can't operate the ladder, the first course of action should be to:
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Evacuate the aerial device
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Aerial devices are designed to handle _____ loads not _____ loads.
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perpendicular lateral
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If an articulating aerial device is going to be in an extended postion for a long time, the _______ locks should be engaged.
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cylinder locks
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Failure of the main hydraulic system on a ladder while it is raised will require using the auxillary pump to lower the device and it should be operated :
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at one min. intervals
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When using 2 1/2 to 3 in. hoses to supply the pumper directly off hydrant pressure,he lines should not be longer than ______ ft.
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300 ft.
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NFPA requires that a pump must pump its rated capacity at _____ of lift.
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10ft.
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