Fire Science Juniors > Chapter 15 > Flashcards

Chapter 15 Flashcards

(58 cards)

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1
Q

What is an Adaptor in firefighting equipment?

A

A device that allows fire hose couplings to be safely interconnected with couplings of different sizes, threads, or mating surfacing

It also allows fire hose couplings to be safely connected to other appliances.

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2
Q

What is an Adjustable-gallonage fog nozzle?

A

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

This type of nozzle provides flexibility in water flow management.

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3
Q

Define Attack hose.

A

Hose designed to be used by trained firefighters and fire brigade members to combat fires beyond the incipient stage

Referenced by NFPA 1961.

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4
Q

What is an Automatic-adjusting fog nozzle?

A

A nozzle that can deliver a wide range of water stream flows

It adjusts the size of the opening based on pressure changes.

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5
Q

What are Ball valves used for?

A

Valves used on nozzles, gated wyes, and engine discharge gates

They consist of a ball with a hole in the middle.

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6
Q

What is a Booster hose?

A

A noncollapsible hose used under positive pressure having an elastomeric or thermoplastic tube

Referenced by NFPA 1962.

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7
Q

What is a Breakaway type nozzle?

A

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

This design allows for flexibility in firefighting operations.

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8
Q

What is a Cellar nozzle used for?

A

A nozzle used to fight fires in cellars or basements and other inaccessible places

It spreads water in a wide pattern as it is lowered through a hole.

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9
Q

Define Deck gun.

A

A device that is permanently mounted on and operated from a vehicle and equipped with a piping system that delivers water to the gun

It is used for large-scale firefighting.

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10
Q

What is a Double-female adaptor?

A

A hose adaptor that is used to join two male hose couplings

This allows for flexible hose connections.

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11
Q

What is a Double-jacket hose?

A

A hose constructed with two layers of woven fibers

This design enhances durability and strength.

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12
Q

What is a Double-male adaptor?

A

A hose adaptor that is used to join two female hose couplings

It facilitates connections between hoses.

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13
Q

What is an Elevated master stream appliance?

A

A nozzle mounted on the end of an aerial device capable of delivering large amounts of water into a fire or exposed building from an elevated position

This is crucial for tackling high-rise fires.

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14
Q

Define Fire streams.

A

Streams of water or extinguishing agents

Essential for effective firefighting.

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15
Q

What is a Fixed-gallonage fog nozzle?

A

A nozzle that delivers a set number of gallons per minute regardless of pressure

This ensures consistent water flow.

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16
Q

What is a Fog-stream nozzle?

A

A nozzle that can be adjusted to produce a straight stream or to separate the water into droplets

This versatility is important for different firefighting scenarios.

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17
Q

What is a Forestry fire hose?

A

A hose designed to meet specialized requirements for fighting wildland fires

Referenced by NFPA 1961.

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18
Q

What are Gate valves used for?

A

Valves found on hydrants and sprinkler systems

They operate by rotating a spindle to move a gate across the opening.

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19
Q

What is a Gated wye?

A

A valved device that splits a single hose into two separate hoses

Each hose can be turned on and off independently.

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20
Q

Define Handline nozzle.

A

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

It is typically used for smaller firefighting operations.

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21
Q

What is Hard suction hose?

A

A short section of supply hose used to draft water from a static source

It connects to the suction side of the fire pump.

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22
Q

What are Higbee indicators?

A

Indicators on the male and female threaded couplings that indicate where the threads start

They help align couplings for easier connection.

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23
Q

What is a Hose appliance?

A

A piece of hardware generally intended for connection to fire hose to control or convey water

Referenced by NFPA 1962.

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24
Q

What is a Hose bridge?

Study These Flashcards
A

A device that protects a hose when it is necessary for a vehicle to drive over a hose

This prevents damage to the hose.

25
What is a **Hose clamp**?
A device used to compress a fire hose to stop water flow ## Footnote It is crucial for controlling water during emergencies.
26
What is a **Hose jacket**?
A device used to stop a leak in a fire hose or to join hoses with damaged couplings ## Footnote This is important for maintaining hose integrity.
27
What is a **Hose liner**?
The inside portion of a hose that is in contact with the flowing water ## Footnote Also called the hose inner jacket.
28
What is a **Hose roller**?
A device placed on the edge of a roof to protect hose as it is hoisted up and over the roof edge ## Footnote This prevents damage during operation.
29
What is a **Ladder pipe**?
A monitor that attaches to the rungs of a vehicle-mounted aerial ladder ## Footnote Referenced by NFPA 1965.
30
Define **Large-diameter hose (LDH)**.
A hose 3.5 in. (89 mm) or larger designed to move large volumes of water ## Footnote It is used for supplying master stream appliances and other systems.
31
What is a **Low-volume nozzle**?
A nozzle that flows 40 gallons per minute (151 L/min) or less ## Footnote It is used for specific firefighting applications.
32
What is a **Master stream appliance**?
Devices used to produce high volume water streams for large fires ## Footnote They typically discharge between 350 gpm (1325 L/min) and 1500 gpm (5678 L/min).
33
Define **Master stream nozzle**.
A nozzle with a rated discharge of 350 gpm (1325 L/min) or greater ## Footnote Referenced by NFPA 1964.
34
What is **Mildew**?
A fungus that can grow on hose if stored wet ## Footnote It can damage the jacket of a hose.
35
What is **Multiple-jacket** construction?
A construction consisting of a combination of two separately woven reinforcements ## Footnote Referenced by NFPA 1962.
36
What is a **Nozzle**?
A device for use in applications requiring special water discharge patterns, directions, pressures, and flows ## Footnote Referenced by NFPA 1964.
37
What is a **Nozzle shut-off valve**?
A device that enables the firefighter at the nozzle to start or stop the flow of water ## Footnote This is essential for controlling water during firefighting.
38
What is a **Piercing nozzle**?
A nozzle that can be driven through sheet metal or other material to deliver a water stream to that area ## Footnote This is useful for accessing fires in difficult locations.
39
What is a **Portable monitor**?
A monitor that can be lifted from a vehicle-mounted bracket and moved to an operating position on the ground ## Footnote Referenced by NFPA 1965.
40
What is a **Reducer**?
A fitting used to connect a small hose line or pipe to a larger hose line or pipe ## Footnote Referenced by NFPA 1142.
41
What is a **Remote-controlled hydrant valve**?
A valve attached to a fire hydrant to allow the operator to turn the hydrant on without flowing water into the hose line ## Footnote This enhances operational efficiency.
42
What are **Rocker lugs**?
Fittings on threaded couplings that aid in coupling the hose ## Footnote Also referred to as rocker pins.
43
What is a **Rubber-covered hose**?
Hose whose outside covering is made of rubber, which is more resistant to damage ## Footnote Also referred to as a rubber-jacket hose.
44
What is a **Siamese connection**?
A hose appliance that allows two hoses to be connected together and flow into a single hose ## Footnote This is useful for increasing water supply.
45
What is a **Single-jacket** hose?
A construction consisting of one woven jacket ## Footnote Referenced by NFPA 1962.
46
What is a **Smooth-bore nozzle**?
A nozzle that produces a solid stream, or a solid column of water ## Footnote This is effective for certain firefighting techniques.
47
What is a **Smooth-bore tip**?
A nozzle device that is a smooth tube used to deliver a solid column of water ## Footnote Different-sized tips can be attached to a single nozzle.
48
What is a **Soft sleeve hose**?
A short section of large-diameter supply hose used to provide water from the large steamer outlet on a fire hydrant to the suction side of the fire pump ## Footnote This is critical for efficient water supply.
49
What is a **Solid stream**?
A solid column of water ## Footnote This is often used for direct firefighting.
50
What is a **Spanner wrench**?
A type of tool used to couple or uncouple hose by turning the rocker lugs or pin lugs on the connections ## Footnote This tool is essential for hose management.
51
What is a **Storz-type (nonthreaded) hose coupling**?
A hose coupling that is genderless and connected by inserting lugs into matching slots ## Footnote It simplifies hose connections.
52
What is a **Straight stream**?
A stream made by using an adjustable nozzle to provide a straight stream of water ## Footnote This is effective for targeting specific fire areas.
53
What is **Suction hose**?
A short section of supply hose used to supply water to the suction side of the fire pump ## Footnote It is crucial for drafting water.
54
What is **Supply hose**?
Hose designed for moving water between a pressurized water source and a pump supplying attack lines ## Footnote Referenced by NFPA 1961.
55
What is a **Threaded hose coupling**?
A type of coupling that requires a male fitting and a female fitting to be screwed together ## Footnote This is a common method for connecting hoses.
56
What is a **Water curtain nozzle**?
A nozzle used to deliver a flat screen of water that forms a protective sheet of water to protect exposures from fire ## Footnote This is important for shielding structures.
57
What is a **Water thief**?
A device with a 2½-in. inlet and outlet in addition to two 1½-in. outlets used to supply many hoses from one source ## Footnote This enhances water distribution.
58
What is a **Wye**?
A device used to split a single hose line into two or more separate lines ## Footnote This allows for multiple attack lines from one source.
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