Chapter 15 Fire Hose Appliances and Nozzles Flashcards
A device that allows fire hose couplings to be safely interconnected with couplings of different sizes, threads, or mating surfaces or that allows fire hose couplings to be safely connected to other appliances.
Adapter
A nozzle that allows the operator to select a desired flow from several settings.
Adjustable-gallonage fog nozzle
Hose designed to be used by trained fire fighters and fire brigade members to combat fires beyond the incipient stage.
Attack hose
A nozzle that can deliver a wide range of water stream flows. As the pressure at the nozzle increases or decreases, an internal spring-loaded piston moves in or out to adjust the size of the opening.
Automatic-adjusting fog nozzle
Valves used on nozzles, gated wyes, and engine discharge gates. They consist of a ball with a hole in the middle of the ball.
Ball valves
A noncollapsible hose used under positive pressure having an elastomeric or thermoplastic tube, a braided or spiraled reinforcement, and an outer protective cover.
Booster hose (booster line)
A nozzle with a tip that can be separated from the shut-off valve.
Breakaway type nozzle
A nozzle that can be placed in confined spaces such as cellars or basements. The nozzle spins, spreading water over a large area.
Bresnan distributor nozzle
Valves that are found on the large pump intake connections where the suction hose connects to the suction side of the fire pump.
Butterfly valves
A nozzle used to fight fires in cellars or basements 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
A mechanical device installed within a piping system that allows water to flow in only one direction.
Clapper mechanism
A device that is permanently mounted on and operated from a vehicle and equipped with a piping system that delivers water to the gun.
Deck gun
A hose adaptor that is used to join two male hose couplings.
Double-female adaptor
A hose constructed with two layers of woven fibers.
Double-jacket hose
A hose adapter that is used to join two female hose couplings.
Double-male adapter
A nozzle mounted on the end of an aerial device that is capable of delivering large amounts of water into a fire or exposed building from an elevated position.
Elevated master stream appliance
Streams of water or extinguishing agents.
Fire streams
A nozzle that delivers a set number of gallons per minute (liters per minute) as per the nozzle’s design, no matter what pressure is applied to the nozzle.
Fixed-gallonage fog nozzle
A nozzle that is placed at the end of a fire hose and can be adjusted to produce a straight stream or to separate the water into droplets to produce a variety of fog streams.
Fog-stream nozzle
A hose designed to meet specialized requirements for fighting wildland fires.
Forestry fire hose
Valves found on hydrants and sprinkler systems. Rotating a spindle causes a gate to move slowly across the opening.
Gate valves
A valved device that splits a single hose into two separate hose, allowing each hose to be turned on and off independently.
Gated wye
A nozzle with a rated discharge of less than 350 gpm (1325 L/min).
Handline nozzle
A short section of supply hose that is used to draft water from a static source such as a river, lake, or portable drafting basin to the suction side of the pump on a fire department engine or into a portable pump.
Hard suction hose
Indicators on the male and female threaded couplings that indicate where the threads start. These indicators should be aligned before fire fighters start to thread the coupling together.
Higbee indicators
A piece of hardware (excluding nozzles) generally intended for connection to fire hose to control or convey water.
Hose appliance
A device that protects a hose when it is necessary for a vehicle to drive over a hose.
Hose bridge
A device used to compress a fire hose to stop water flow.
Hose clamp
A device used to stop a leak in a fire hose or to join hose that have damaged couplings.
Hose jacket
The inside portion of a hose that is in contact with the flowing water; also called the hose inner jacket.
Hose liner
A device that is placed on the edge of a roof and is used to protect hose as it is hoisted up and over the roof edge.
Hose roller
A monitor that attaches to the rungs of a vehicle-mounted aerial ladder.
Ladder pipe
A hose 3.5 in. (89 mm) or larger that is designed to move large volumes of water to supply master stream appliances, portable hydrants, manifolds, standpipe and sprinkler systems, and fire department pumpers from hydrants and In relay.
Large-diameter hose (LDH)
A nozzle that flows 40 gallons per minute (151 L/min) or less.
Low-volume nozzle
Devices used to produce high volume water streams for large fires. Most master stream appliances discharge between 350 gpm (1325 L/min) and 1500 gpm (5678 L/min), though much larger capacities are available. These devices include deck guns and portable ground monitors.
Master stream appliance
A fungus that can grow on hose if the hose is stored wet. ______ can damage the jacket of a hose.
Mildew
A construction consisting of a combination of two separately woven reinforcements (double jacket) or two or more reinforcements interwoven.
Multiple-jacket
A device for use in applications requiring special water discharge patterns, directional spray, or other unusual discharge characteristics.
Nozzle
A device that enables the fire fighter at the nozzle to start or stop the flow of water.
Nozzle shut-off valve
A nozzle that can be driven through sheet metal or other material to deliver a water stream to that area.
Piercing nozzle
A monitor that can be lifted from a vehicle-mounted bracket and moved to an operating position on the ground by not more than two people.
Portable monitor
A fitting used to connect a small hose line or pipe to a larger hose line or pipe.
Reducer
A valve that is attached to a fire hydrant to allow the operator to turn the hydrant on without flowing water into the hose line.
Remote-controlled hydrant valve
Fittings on threaded couplings that aid in coupling the hose. Also referred to as rocker pins.
Rocker lugs
Hose whose outside covering is made of rubber, which is said to be more resistant to damage. Also referred to as a rubber-jacket hose.
Rubber-covered hose
A hose appliance that allows two hose to be connected together and flow into a single hose.
Siamese connection
A construction consisting of one woven jacket.
Single-jacket
A nozzle that produces a solid stream, or 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. Different-sized tips can be attached to a single nozzle or appliance.
Smooth-bore tip
A short section of large-diameter supply hose that is used to provide water from the large steamer outlet (the large-diameter port) on a fire hydrant or other pressurized water source to the suction side of the fire pump.
Soft sleeve hose
A solid column of water.
Solid stream
A type of tool used to couple or uncouple hose by turning the rocker lugs or pin lugs on the connections.
Spanner wrench
A hose coupling that has the property of being both the male and the female coupling. It is connected by engaging the lugs and turning the coupling a one-third turn.
Storz-type (nonthreaded) hose coupling
A stream made by using an adjustable nozzle to provide a ________ ______ of water.
Straight stream
Hose designed for the purpose of moving water between a pressurized water source and a pump that is supplying attack lines.
Suction hose
A type of coupling that requires a male fitting and a female fitting to be screwed together.
Threaded hose coupling
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
A device that has a 2.5-in. (65-mm) outlet in addition to two 1.5-in. (38-mm) outlets. It is used to supply many hose from one source.
Water thief
A device used to split a single hose into two or more separate lines.
Wye
The properties of energy, pressure, and water now are called
A. fire dynamics.
B. hose dynamics.
C. fire hydraulics.
D. hose hydraulics.
C. fire hydraulics.
The flow of water is measured in
A. gallons per minute.
B. gallons per hour.
C. gallons.
D. gallons per second.
A. gallons per minute.
The amount of energy in a body of water is measured m
A. flow.
B. pressure
C. potential energy.
D. kinetic energy.
B. pressure
Pressure is measured in
A . gpm.
B. csi.
C. gsi.
D. psi.
D. psi.
Friction loss is influenced by the diameter of the hose, the volume of water traveling through the hose, and
A. the distance the water travels.
B. the type of pump involved.
C. the state of the water source.
D. the temperature of the water.
A. the distance the water travels.
To prevent water hammer, a fire fighter should always
A. use the appropriate-size supply lines.
B. select the most appropriate nozzles.
C. open and close fire hydrant valves slowly.
D. communicate with the driver/operator.
C. open and close fire hydrant valves slowly.
Attack hose must be tested annually at a pressure of at least
A. 100 psi.
B. 200 psi.
C. 300 psi.
D. 400 psi.
C. 300 psi.
Supply hose line is intended to be used at a pressure up to
A. 75 psi.
B. 100 psi.
C. 160 psi.
D. 185 psi.
D. 185 psi.
To connect and disconnect hose couplings, fire fighters use a(n)
A. rocker wrench.
B. spanner wrench.
C. lug lock.
D. adaptor.
B. spanner wrench.
Storz-type couplings are designed with
A. quick-release lugs.
B. dual swivel connectors.
C. no male or female ends to the hose.
D. no lugs or threads.
C. no male or female ends to the hose.
A 2 ½-inch handline hose is generally considered to now
A. 100 gallons of water per minute.
B. 150 gallons of water per minute.
C. 200 gallons of water per minute.
D. 250 gallons of water per minute.
D. 250 gallons of water per minute.
- A short section of large-diameter hose used to connect a fire department engine directly to the large steamer outlet on a hydrant is a
A. hard suction hose.
B. soft suction hose.
C. steamer sleeve hose.
D. Siamese sleeve hose.
B. soft suction hose.
Any device that is used in conjunction with a fire hose for the purpose of delivering water is a
A. hose appliance.
B. nozzle.
C. hydraulic appliance.
D. delivering agent.
A. hose appliance.
A gated wye with an additional 2 ½-inch outlet is a(n)
A. water thief.
B. open wye.
C. Siamese.
D. outlet wye.
A. water thief.
A device used to stop a leaking section of hose is a
A. sweep.
B. water thief.
C. hose cap.
D. hose jacket.
D. hose jacket.
Which type of valve is often found on the large pump intake connections where a hard suction or soft suction hose is connected and opened by rotating a handle one-quarter turn?
A. Gate valve
B. Ball valve
C. Butterfly valve
D. Gated wye valve
C. Butterfly valve
Which method for loading hose is the easiest and can be used for any size of hose?
A. Split hose load
B. Minuteman hose load
C. Flat hose load
D. Accordion hose load
C. Flat hose load
Which hose load utilizes the perimeter or the hose bed and allows the hose to be laid in a U shape?
A. Dutch hose load
B. Horseshoe hose load
C. Booster hose load
D. Flat hose load
B. Horseshoe hose load
Which carry is used to transport full lengths or hose over a longer distance than it is practical to drag the hose?
A. Shoulder carry
B. Firemans carry
C. Hose carry
D. Advancing carry
A. Shoulder carry
The three categories of nozzles are low volume, master stream, and
A. high volume nozzles.
B. secondary stream nozzles.
C. apparatus nozzles.
D. handline nozzles.
D. handline nozzles.
Which nozzles separate the water into droplets?
A. Smooth-bore nozzles
B. Fog-stream nozzles
C. Breakaway nozzles
D. Aeration nozzles
B. Fog-stream nozzles
Bresnan distributor nozzles are used to fight fires in
A. warehouses.
B. open spaces.
C. inaccessible places.
D. defensive attacks.
C. inaccessible places.
Which type of foam is used to fight fires involving ordinary combustible materials?
A. Class A foam
B. Class B foam
C. Protein foam
D. Fluoroprotein foam
A. Class A foam
Which device mixes the foam concentrate into the fire stream?
A. Foam eductor
B. Foam injector
C. Foam regulator
D. Foam proportioner
D. Foam proportioner
Which foam application method uses an object to deflect the foam stream down onto the fire?
A. Overhead method
B. Deflection method
C. Bankshot method
D. Rain-down method
C. Bankshot method
_________ refers to the volume of water that is being moved through a hose.
Flow
A pump is used to add energy to a water stream and causes a(n) _________ in pressure.
increase
_________ is a surge in pressure caused by suddenly stopping the flow of a stream of water.
Water hammer
The hoses used to discharge water from an attack engine onto the fire are called _________ .
attack hoses/lines
_________ are used to make connections between hose lengths or between hose lengths and hydrants
Couplings
A(n) _________ is an important part of a threaded coupling, as it forms a seal to stop water from leaking.
rubber gasket
Fire hose is likely to be damaged if run over by a vehicle; for this reason, hose_________ should be used in traffic.
ramps
_________ is a type of fungus that can grow on many fabrics and materials in warm, moist conditons.
Mildew
A(n) _______ adapter is used to join two male hose couplings.
double female
_________ are used to control the flow of water in a pipe or a hose line.
Valves
Fire hose evolutions are divided into _________ line operations and _________ line operations.
supply, attack
The _______ load attaches the female end of the hose to the preconnect discharge.
triple layer
A hose line should be flaked out _______ it is charged with water.
before
If a hose line has to be advanced up a ladder, it should be charged _________ it is advanced.
after
True/False
Elevation affects water pressure.
True
True/False
Water hammer can rupture a hose, cause a coupling to separate, or damage underground piping systems.
True
True/False
Larger-diameter hoses are used as anack lines, and smaller-diameter hoses are almost always used as supply lines.
False
True/False
Booster lines are used for small outdoor fires.
True
True/False
Double-jacket hose is constructed with two layers of hose liner.
False
True/False
The male coupling has a swivel to reduce twisting of the hose.
False
True/False
Charged hose lines should never be disconnected while the water inside the hose is under pressure.
True
True/False
When fire fighters are working in below-freezing temperatures, water should be kept flowing to prevent freezing in hoses.
True
True/False
A gated wye has two quaner-turn ball valves to allow for independent control of the water flow.
True
True/False
A master stream device is used primarily during interior attacks.
False
True/False
The attack hose is loaded so that it can be quickly and easily deployed.
True
True/False
The best hose carry technique for a particular situation depends on the size of the hose, the distance it must be moved, and the number of fire fighters available to perform the task.
True
True/False
A hose line should be charged before it is advanced up a stairway.
False
True/False
Standpipe systems are used to provide a water supply for attack lines that will be operated inside the building.
True
