Chapter 17 fire attack and foam

What is the term for a hose line that is stored on an engine connected to a discharge and equipped with a nozzle for immediate deployment?

preconnect

Which type of hose ranges in size from 2�" (65 mm) to 3" (75 mm) in diameter?

Medium

Which statement about straight streams is correct?

A straight stream is discharged from an adjustable fog nozzle.

Which preconnected hose load forms an S-shape in the hose bed?

triple layer

Generally speaking, a 1�" (45-mm) attack hose can flow __________.

120 to 180 gpm (454 to 681 lpm)

What is the correct procedure for a burst hose line?

Use two lengths of hose to replace a single burst length

Which statement about operating a nozzle from a ground ladder is correct?

The hose must be tied securely to the ladder

Hard rubber hose stored on a hose reel is __________ hose.

booster

Which hose diameter is used as both supply line and attack handline?

Wyed lines

What is an appropriate use for a 1" (25-mm) booster line?

Dumpster fire

Which attack line load is often coupled to a larger-diameter line?

Wyed lines

The function of a standpipe system is to provide __________.

a water supply for interior attack lines

What is the correct procedure for the triple-layer load?

The entire load must be on the ground before the nozzle can be advance

Generally speaking, a 1�" (38-mm) attack hose can flow __________.

60 to 125 gpm (227 to 473 lpm)

For which preconnected hose load does the fire fighter shoulder part of the load, with hose paying off the top of that load as the fire fighter advances?

Minuteman

When there is extra hose at the entry of a building, how should that hose be arranged?

A serpentine pattern

What is an advantage of a fog-stream nozzle?

Greater heat absorption per gallon discharged

When there is extra hose at the entry of a building, how should that hose be arranged?

A serpentine pattern

How should fire fighters space themselves when advancing an uncharged line up a ladder?

One fire fighter on each ladder section

What is the second stage of advancing an attack line?

Advancing the line to the point of attack

Which type of foam is effective on polar solvents

Alcohol-resistant

Which type of nozzle is used most commonly with fluoroprotein foam?

Aerating

Class B foam is used for which type of fire?

Flammable liquids

Which foam application method is best for a pool of flammable liquid on open ground?

Sweep (roll-on)

Which device mixes foam concentrate in the water stream in the proper percentage?

Proportioner

Which type of foam is made from animal by-products?

protein

Which foam application method is best for an open-top storage tank fire?

Bankshot (bank-down)

What is high-expansion foam particularly used for?

Flooding of large enclosed areas

Which type of foam is particularly well suited for gasoline spills?

Aqueous film-forming

Adding foam concentrate to a fire apparatus tank is called __________.

batch mixing

Generally speaking, a 1" (25 cm) booster hose can flow __________.

40 to 50 gpm (151 to 189 lpm)

Which attack line load is particularly useful when the line must be advanced up a stairway?

minuteman

Which type of fog-stream nozzle provides a flow between 90 and 225 gpm (340 and 852 lpm)?

Automatic-adjusting

A 50' (15 m) section of charged 2�" (64 mm) hose weighs approximately _____.

200 lb (91 kg)

Which type of nozzle is used to fight fires in inaccessible places such as attics and basements?

Cellar

The low surface tension of Class A foam affects its extinguishing properties by __________.

enabling water to penetrate the fuel more deeply

To batch mix 3 percent foam into a 500-gallon (1893-liter) water tank, how much foam concentrate should be added to the tank?

15 gal (57 L)

Which type of foam contains a surface-active agent that produces a fast-spreading film?

Fluoroprotein

What is a benefit of Class A foam?

Reduces the surface tension of water

How does foam extinguish flammable liquid fires?

Separates the fuel from the fire