Chapter 17
What is the minimum size hose line for a vehicle fire?
1 1/2" (38 mm)
What is the minimum number of fire fighters needed to advance and maneuver a 2 1/2" (65-mm) handline inside a building?
2
Application of a fire stream to solar panels should be done from a distance of no less than:
20 ft (6 m)
What is the minimum flow from a master stream device?
350 gpm (1325 lpm)
How should fire fighters approach a vehicle fire?
45-degree angle from the side
Class _____ extinguishing agents should be used on energized electrical equipment fires.
C
Which statement most accurately describes a transitional attack?
a brief offensive exterior attack followed by an interior attack
Which statement about hydraulic ventilation is correct?
a fog stream is required
In a direct attack, water should be applied until:
all visible flame is extinguished
What happens during a transitional attack?
an offensive operation is performed from the exterior
Which statement about using hose streams on a transformer fire is correct?
application of water may cause splashing and spread of toxic liquids
When shutting down electrical service to a structure, you should:
apply a lockout device
Which fire-extinguishing agent would be the best choice for use on delicate electronic equipment?
carbon dioxide
What is the best item to aid in the extinguishment of smoldering fires in tightly packed combustible materials?
class A foam
What is the correct method to stop the flow of gas into a structure supplied by an outside LPG storage cylinder?
close the valve on the cylinder
Which hazard is of particular concern with fires involving stacked or piled material?
collapse of the stack
Which hazard presents the greatest risk for a fire in a modern vehicle?
components containing pressurized gas
Which vehicle fuel or propulsion system presents the potential for BLEVE?
compressed gas
Peeling or bubbling paint is an indicator of:
concealed fire
If there is no life-safety hazard, which type of fire attack should be used in a building under construction that has no doors or windows?
defensive
In which type of operation are large headlines and master streams more often used?
defensive
Master stream devices are most commonly used for which operation?
defensive
Preventing the spread of fire is the primary objective of which fire attack?
defensive
Which type of attack is used when the main objective is to protect exposures?
defensive
When operating near the suspected area of origin, fire fighters should be especially careful to:
disturb the area as little as possible
Ideally, which should be used to extinguish a chimney fire?
dry chemical
What does the E stand for in the acronym SLICE-RS?
extinguish the fire
Studies by NIST and UL have determined that the movement of fire through a structure is dependent primarily on:
flow path
What is the term for the movement of heat and smoke in a structure from an area of higher pressure near the fire to an area of lower pressure?
flow path
Which type of stream may be safe for use on solar panels?
fog
What is an effect of a hose stream that consists of droplets with a large surface area?
heat absorption is enhanced
Which is the rate at which heat is transferred from one surface to another?
heat flux
Exposure protection during a defensive operation takes __________ priority
high
Which special hazard is unique to hybrid vehicles?
high-voltage components
From a doorway, a crew directs a hose stream at the ceiling of a burning room. This is a(n) __________ attack
indirect
Which statement about an offensive exterior attack is correct?
its effects are short-lived
An elevated master stream device mounted at the tip of an aerial ladder is a:
ladder pipe
A portable monitor is an example of:
master stream devices
Fire fighters getting close enough to apply extinguishing agent directly on the fire is the objective of which type of operation?
offensive
Operations are conducted from inside the fire building in which type of attack?
offensive
Where should additional equipment be staged on a high-rise fire?
one or two floors below the fire
Which term refers to two crews operating hose lines against each other?
opposing handlines
Which cancer-causing material might electrical transformers contain?
polychlorinated biphenyls
Which is another term for liquefied petroleum gas?
propane
In modern residential construction, fresh air enters the attic space through which vent?
soffit
When conducting a transitional attack on an attic fire, streams should be directed through the:
soffit vents
Which hazardous material is commonly found in vehicle batteries?
sulfuric acid
What is the target of the hose stream in a direct attack?
the base of the fire
What is the target of the hose stream in an indirect attack?
the ceiling of the fire room
What is the correct method to stop the flow of gas delivered via an underground utility network into a structure?
turn off the valve at the meter
Which is another term for a deck gun?
turret pipe
A vehicle fueled by compressed gas is fully involved in fire. What should be used to fight the fire?
unmanned master stream
Which is the preferred method to overhaul a trash bin fire?
use class A foam to saturate all the fuel
Which is the best way to shut off electrical service to a building?
use the main circuit breakers
Which statement about ventilating a basement fire is correct?
ventilation may be difficult due to the limited number of outside openings
Attic fires should generally be treated as:
ventilation-limited
