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88 Cards in this Set

  • Front
  • Back

Most _______ ______ carry water directly from the attack engine to a nozzle that is used to direct the water onto the fire.

attack hoses
Attack hoses usually operate at _______ pressures than ______ lines do.
higher / supply
The hoses most commonly used to attack interior fires are either ____ inches (38 millimeters) or ___ inches (45 millimeters) in diameter. Each section of attack hose is usually ___ feet (15 meters) long.
1½ / 1¾ / 50
Attack hose must be tested ______ at a pressure of at least _____ psi (2068 kPa) and is intended to be used at pressures up to ____ psi (1896 kPa).
annually / 300 / 275
Depending on the pressure in the hose and the type of nozzle used, a 1½-inch (38-mm) hose can generally flow between ___ and ____ gpm (227 and 473 L/sec). An equivalent 1¾-inch (44-mm) hose can flow between ____ and ____ gpm (454 and 681 L/sec).
60 / 125
120 / 180
A ___-inch (64-mm) hose is used as an attack line for large fires and generally delivers a flow of approximately ____ gpm (946 L/sec).
2½ / 250
It takes at least ___fire fighters to control a 2½-inch (64-mm) handline safely because when the hose is charged with water it can weigh as much as ____ pounds (91 kilograms).
two / 200
________ ______ contains a steel wire that gives it a rigid shape so that the hose can flow water without pulling all of the hose off the reel.
Booster hose /
The normal flow from a 1-inch (25-mm) booster hose is in the range of ___ to ___ gpm (151 to 189 L/sec). This type of hose should not be used for structural firefighting.
40 / 50
Attack hose is loaded so that it can be quickly and easily deployed. The three most common hose loads used for preconnected attack lines are the:
minuteman load, the flat load, and the triple-layer load
A section of a divided hose bed at the rear of the apparatus can be loaded with a __________ attack line.
Transverse hose beds are installed above the pump on many engines and loaded so that the hose can be pulled off from _________ _______ of the apparatus.
either side

Preconnected lines can be loaded into special trays that are mounted on the ____ of fire apparatus.

Many engines include a special compartment in the front bumper that can store a short ________ hose line.
To reach a fire that is some distance from the engine, it might be necessary to first advance a larger-diameter line, and then split it into two ____-inch (45-mm) attack lines. This is accomplished by attaching a ______ ____ or a _______ _______ to the end of the 2½-inch (65-mm) line, and then attaching the two attack lines to the gated outlets.
1¾ / gated wye / water thief
Attack line is stretched in _____ stages.
First, the hose is laid out from the attack engine to the building entrance or to a location close to the fire. Then, the hose is advanced into the building to reach the fire. Extra hose should be deposited at the __________ to the fire building. Make sure you ______ out the hose before it is charged with water.
entrance / flake
When you are given the command to advance the hose, keep ________ as your number one priority.
As you move inside the building, stay _____ to avoid the greatest amount of heat and smoke. Communicate with the other members of the _______ ________ as you advance.
low / nozzle team
As you advance the hose line, you need to have _________ _________ to enable you to move forward.
enough hose
Charged hose lines are not ____________ ____ __________. It is only with good teamwork that efficient hose line advancement can occur.
easy to advance
________ are attached to the discharge end of attack lines to give fire streams shape and direction. _________ are used on all sizes of handlines as well as on master stream devices.
Nozzles can be classified into three groups:
• Low-volume nozzles
• Handline nozzles
• Master stream nozzles
_____________ ________ flow ___ gpm (151 L/sec) or less. They are primarily used for booster hoses; their use is limited to small outside fires.
Low-volume nozzles / 40
Handline nozzles are used on hose lines ranging from ___ inches (38 millimeters) to ____ inches (65 millimeters) in diameter. Handline streams usually flow between ____ and ______ gpm (227 and 1324 L/sec).
1½ / 2½
60 / 350
Master stream nozzles are used on deck guns, portable monitors, and ladder pipes that flow more than ____ gpm (1324 L/sec).
_________ __________ enables the fire fighter at the nozzle to start or stop the flow of water.
Nozzle shut-off
Two different types of nozzles are manufactured for the fire service:
• Smooth-bore nozzles
• Fog-stream nozzles.
______________: Produce a solid column of water.
Smooth-bore nozzles.
____________: Separate the water into droplets. The size of the water droplets and the discharge pattern can be varied by adjusting the nozzle setting.
Fog-stream nozzles
____________: Used to make a hole in sheet metal or building walls to extinguish fires.
Piercing nozzles
_____________: Used to fight fires in cellars and other inaccessible places such as attics and cocklofts.
Cellar nozzles and Bresnan distributor nozzles.
_____________: Used to deliver a flat screen of water that forms a protective sheet of water on the surface of an exposed building.
Water curtain nozzles.
Firefighting ______ can be used to fight multiple types of fires and to prevent the ignition of additional fuels. Several different types of _____ are used for fires involving different types of fuels.
Two Class of Foam
Class A or B
Class ___ foam is used to fight fires involving ordinary combustible materials, such as wood, paper, and textiles.
Class ___ foam is used to fight Class B fires, or fires involving flammable and combustible liquids.
Foam extinguishes flammable-liquid fires by _________ the fuel from the fire. When a blanket of foam completely covers the surface of the liquid, the release of ___________ ________ stops. Preventing the production of additional vapors eliminates the fuel source for the fire, which extinguishes the fire.
separating / flammable vapors
Foam _________ is the product that is mixed with water in different ratios to produce foam solution. The foam ___________ is the product that is actually applied to extinguish a fire or to cover a spill.
concentrate / solution
The major categories of Class B foam concentrate are:
protein foam, fluoroprotein foam, film-forming fluoroprotein, aqueous film-forming foam, and alcohol-resistant foams
Compressed air foam systems are a new method of making Class ___ foam. Compressed air foam is produced by injecting compressed air into a stream of water that has been mixed with ____ percent to ____ percent foam.
A / 0.1 / 1.0
A foam _____________ is the device that mixes the foam concentrate into the fire stream in the proper percentage.
The two types of proportioners—__________ and ___________ —are available in a wide range of sizes and capacities.
eductors / injectors
Foam solution can also be produced by ___________ or _____________.
batch mixing / premixing
________ __________ is a technique where foam concentrate is poured directly into an apparatus booster tank to produce foam solution.
Batch mixing
__________ __________ is commonly used in 2½-gallon (9.5-liter) portable fire extinguishers.

Premixed foam

A nozzle that allows the operator to select a desired flow from several settings.

Adjustable-gallonage fog nozzle

The process of inducing air into the foam solution, which expands and finishes the foam.


Used for fighting fires involving water-soluble materials or fuels that are destructive to other types of foams. Some alcohol-resistant foams are capable of forming a vapor-suppressing aqueous film on the surface of hydrocarbon fuels. (NFPA 412)

Alcohol-resistant foam

A concentrated aqueous solution of one or more hydrocarbon and/or fluorochemical surfactants that forms a foam capable of producing a vapor-suppressing, aqueous film on the surface of hydrocarbon fuels. (NFPA 403)

Aqueous film-forming foam (AFFF)

An engine from which attack lines have been pulled.

Attack engine

A nozzle that can deliver a wide range of water stream flows. It operates by means of an internal spring-loaded piston.

Automatic-adjusting fog nozzle

A method that applies the stream onto a nearby object, such as a wall, instead o directly aiming at the fire.

Bankshot (bank-down) method

Pouring foam concentrate directly into the fire apparatus water tank, thereby mixing a large amount of foam at one time.

Batch mixing

A noncollapsible hose used under positive pressure having an elastomeric or thermoplastic tube, a braided or spiraled reinforcement, and an outer protective cover. (NFPA 1962)

Booster hose (booster line)

A nozzle with a tip that can be separated from the shut-off valve.

Breakaway nozzle

A nozzle that can be placed in confined spaces. The nozzle spins, spreading water over a large area.

Bresnan distributor nozzle

Valves that are found on the large pump intake valve where the hard or soft suction hose connects.

Butterfly valves

A nozzle used to fight fires in cellars and other inaccessible places. The device works by spreading water in a wide pattern as the nozzle is lowered through a hole into the cellar.

Cellar nozzle

Foam intended for use on Class A fires. (NFPA 1150)

Class A foam

Foam intended for use on Class B fires. (NFPA 1901)

Class B foam

Class A foam produced by injecting compressed air into a stream of water that has been mixed with 0.1 percent to 1.0 percent foam.

Compressed air foam (CAF)

A foam system that combines air under pressure with foam solution to create foam. (NFPA 1901)

Compressed air foam system

A protein-based foam concentrate incorporating fluorinated surfactants that forms a foam capable of producing a vapor-suppressing aqueous film on the surface of hydrocarbon fuels. This foam can show an acceptable level of compatibility with dry chemicals and might be suitable for use with those agents. (NFPA 412)

Film-forming fluoroprotein (FFFP)

A nozzle that delivers a set number of gallons per minute (liters per second) as per the nozzle’s design, no matter what pressure is applied to the nozzle.

Fixed-gallonage fog nozzle

A protein-based foam concentrate to which fluorochemical surfactants have been added. This has the effect of giving the foam a measurable degree of compatibility with dry chemical extinguishing agents and an increase in tolerance to contamination by fuel. (NFPA 402)

Fluoroprotein foam

A concentrated liquid foaming agent as received from the manufacturer. (NFPA 11)

Foam concentrate

A device placed in the hose line that draws foam concentrate from a container and introduces it into the fire stream.

Foam eductor

A device installed on a fire pump that meters out foam by pumping or injecting it into the fire stream.

Foam injector

A device or method to add foam concentrate to water to make foam solution. (NFPA 1901)

Foam proportioner

A homogeneous mixture of water and foam concentrate in the proper proportions. (NFPA 1901)

Foam solution

A nozzle that is placed at the end of a fire hose and separates water into fine droplets to aid in heat absorption.

Fog-stream nozzle

A nozzle with a rated discharge of less than 1325 L/min (350 gpm). (NFPA 1964)

Handline nozzle

A nozzle that flows 40 gallons per minute (2.5 liters per second) or less.

Low-volume nozzle

A large-capacity nozzle that can be supplied by two or more 2½-inch (64-mm) hose lines or large-diameter hose or fixed piping. It can flow between 350 and 1500 gallons per minute (22.1 and 94.6 liters per second). These devices include deck guns and portable ground monitors.

Master stream device

Master stream nozzle

A nozzle with a rated discharge of 1325 L/min (350 gpm) or greater. (NFPA 1964)

Hose with a diameter of 2½ or 3 inches (64 or 76 millimeters).

Medium-diameter hose (MDH)

A constricting appliance attached to the end of a fire hose or monitor to increase the water velocity and form a stream. (NFPA 1965)


A device that enables the fire fighter at the nozzle to start or stop the flow of water.

Nozzle shut-off

A nozzle that can be driven through sheet metal or other material to deliver a water stream to that area.

Piercing nozzle

Solution produced by introducing a measured amount of foam concentrate into a given amount of water in a storage tank. (NFPA 11)

Premixed foam

A ________-based foam concentrate that is stabilized with metal salts to make a fire-resistant foam blanket. (NFPA 402)

Protein foam

Hose with a diameter ranging from 1 to 2 inches (25 to 51 millimeters).

Small-diameter hose (SDH)

A nozzle that produces a straight stream that is a solid column of water.

Smooth-bore nozzle

A nozzle device that is a smooth tube, which is used to deliver a solid column of water.

Smooth-bore tip

A method of applying foam that involves sweeping the stream just in front of the target.

Sweep (roll-on) method

A hose loading method in which the hose is folded back onto itself to reduce the overall length to one-third before loading the hose in the bed. This load method reduces deployment distances.

Triple-layer load

A nozzle used to deliver a flat screen of water that forms a protective sheet of water to protect exposures from fire.

Water curtain nozzle