Ch 17 Fire Suppression

A ___ is produced by a smooth bore nozzle

a) straight stream

b) fog stream

c) solid stream

d) master stream

c) solid stream

a ___ is made up of concentrated droplets

a) straight stream

b) master stream

c) fog stream

d) solid stream

a) straight stream

A ___ can also block a ventilation opening

a) solid stream

b) fog stream

c) straight steam

d) master stream

b) fog stream

A ____ can discharge more than 2000 gpm

a) master stream

b) solid stream

c) fog stream

d) straight stream

a) master stream

When trying to suppress ___ identify a secondary exit

a) attic fires

b) lumberyard fires

c) fires above ground level

d) fires in large buildings

c) fires above ground level

Understand roof vents and flow paths to successfully extinguish

a) attic fires

b) lumber yard fires

c) fires above ground level

d) fires in large buildings

a) attic fires

Exposure protection at ___ is your primary objective

a) attic fires

b) lumberyard fires

c) fires above ground level

d) fires in large buildings

b) lumberyard fires

LDH lines are required for

a) attic fires

b) lumberyard fires

c) fires above grounf level

d) fires in large buildings

d) fires in large buildings

In A defensive operation your primary objective is to ___

a) create the fire tetrahedron

b) perform a direct attack

c) prevent the fire from spreading

d) protect exposures nearby

c) prevent the fire from spreading

Which master stream appliance should not be lowered beyond a safe angle of 35 degrees

a) ladder pipe

b) elevated stream device

c) deck gun

d) portable monitor

d) portable monitor

when you advance a charged hoseline theough an opening toward a basement fire you should use a ___ stream

a) solid

b) fog

c) master

d) straight

d) straight

Once your remove the plastic vents from the underside of the soffit you should use a ___ to spray water into the soft-vent opening

a) fog stream nozzle

b) cellar nozzle

c) straight stream nozzle

d) bresnan distributor nozzle

c) straight stream nozzle

Fire fighters do not risk manual overhaul of a burning trash container even if the fire is deep seated because __

a) trash container contents are low in value

b) dumpsters are now constructed of polyethylene

c) containers are often placed behind large buildings

d) Class A foam extinguishers are not easily available

a) trash container contents are low in value

When operating a fire hose stream on solar panels, UL 2011 recommends keeping a safe distance of at least ___

a) 2ft

b) 50ft

c) 20ft

d) 3ft

c) 20ft

Many chimney fires are caused by the lack of maintenance and cleaning as ___ is a highly combustible product that builds up in chimneys

a) Halon Agent

b) creosote

c) Battery Acid

d) polychlorinated biphenyl

b) creosote

The 12-volt electrical systems in ___ pose a minimal threat to rescuers

a) battery electric vehicles

b) blended fuel vehicles

c) hybrid electric vehicles

d) conventional vehicles

d) conventional vehicles

To manually open the hood of a burning vehicle you should __

a) insert a pry bar along the side of the hood to produce an opening

b) break out the plastic grille and find the hood release cable

c) break out one or more windows with a striking tool

d) pull the hood release lever

b) break out the plastic grille and find the hood release cable

Apply __ extinguishing agents to control the fire in overhead or ground mounted transformers

a) Class B

b) Class A

c) Class D

d) Class C

d) Class C

The term "__" refers to all the tactics and tasks that are performed on the fire scene to achieve the final goal of extinguishing the fire

a) strategy

b) fire suppression

c) offensive attack

d) fire control

b) fire suppression

the first two types of suppression operations are classified as either

a) offensive or defensive

b) exterior or interior

c) strategic or tactical

d) offensive or exterior

a) offensive or defensive

The decision to conduct offensive or defensive operations must be made by the ___ at the beginning of each fire suppression operation

a) dispatcher

b) pump operator

c) chief

d) incident commander

d) incident commander

Large hand lines and master streams are more often used in ___ operations

a) interior

b) exterior

c) defensive

d) offensive

c) defensive

The transitional attack "___" or cools the fire gases, reduces the risk of flashover, imporves visibility, and allows fire fighters to enter the fire compartment quickly

a) prepares the assault

b) advances the ball

c) steams the clams

d) softens the target

d) softens the target

___ Streams are used when large quantities of water are needed to control a large fire and flow at least 350gpm

a) hand

b) large

c) master

d) copious

c) master

A ___ gun is sometimes called a turret pipe or wagon pipe

a) deck

b) master

c) ground

d) truck

a) deck

Anytime fire fighters are faced with fighting fire in a large structure a well organized ___ plan of the structure can be essential

a) postfire

b) preincident

c) fire

d) disaster

b) preincident

Protecting ___ refers to actions that are taken to prevent the spread of a fire to areas that are not already burning

a) buildings

b) exposures

c) surroundings

d) blocks

b) exposures

after a fire, electric vehicles and hybrids should be stored at least ____ from any exposures because of the possibility of a late rekindle

a) 80ft

b) 70ft

c) 60ft

d) 50ft

d) 50ft

A combination fire attack begins with

a) performing ventilation

b) an exterior attack

c) an indirect attack

d) exposure protection

c) an indirect attack

Defensive firefighting operations are conducted from which location?

a) roof

b) exterior

c) interior

d) threatened exposure

b) exterior

Most master stream devices flow:

a) 350 to 1500 gpm

b) 350 to 2500 gpm

c) 500 to 1200 gpm

d) 500 to 2000 gpm

a) 350 to 1500 gpm

under which circumstances is it considered safe for one firefighter to safely handle a large handline?

a) when the handline is stationary and well anchored

b) there are no circumstances under which this is considered a safe practice

c) when using a 50psi nozzle

d) when using the handline for exposure protection

a) when the handline is stationary and well anchored

What does the C stand for in SLICE-RS

a) control the flow path

b) confine the fire

c) consider the possibilities

d) cool the space from the safest location

d) cool the space from the safest location

What is the maximum diameter of a small handline?

a) 2"

b) 1 3/4"

c) 2 1/2"

d) 1 1/2"

a) 2"

Which firefighting attack, if successful, will result in the least amount of property damage?

a) transitional

b) indirect

c) defensive

d) offensive

d) offensive

Which is a characteristic of a fog stream?

a) it is ideal for reaching distant targets

b) it creates water droplets with a large surface area

c) it produces less run off than a solid stream

d) it produces minimal air turbulence

b) it creates water droplets with a large surface area

Which is an advantage of a straight stream over a fog stream?

a) less nozzle reaction

b) longer reach

c) increased surface area of the stream

d) greater heat absorption

b) longer reach

Which is the minimum flow from a large handline?

a) 200 gpm

b) 150 gpm

c) 250 gpm

d) 350 gpm

c) 250 gpm

Which statement is correct about simultaneous offensive and defensive operations at the same building?

a) it may be a useful tactic for large industrial buildings

b) it may be necessary when circumstances prevent the use of a transitional attack

c) it may be necessary until the completion of the primary search

d) it is dangerous and should not be done

d) it is dangerous and should not be done

A portble monitor is an example of:

a) large handlines

b) aerial streams

c) deluge sets

d) master stream devices

d) master stream devices

A vehicle fueled by compressed gas is fully involved in a fire. what should be used to fight the fire?

a) 2 1/2" hose stream

b) unmanned master stream

c) carbon dioxide

d) 1 3/4" hose stream

b) unmanned master stream

An elevated master stream device mounted at the tip of an aerial ladder is a:

a) snorkel

b) rung gun

c) turret

d) ladder pipe

d) ladder pipe

Application of a fire stream to solar panels should be done from a distance of no less than:

a) 20ft

b) 15ft

c) 25ft

d) 10ft

a) 20ft

attic fires should generally be treated as:

a) growth-phase

b) incipient

c) fuel-controlled

d) ventilation-limited

d) ventilation-limited

Class ___ extinguishing agents should be used on energized electrical equipment fires

a) C

b) B

c) A

d) D

a) C

Exposure protection during a defensive operation takes _____ priority

a) zero

b) low

c) medium

d) high

d) high

Fire fighters getting close enough to apply extinguishing agent directly on the fire is the objective of which type of operation?

a) offensive

b) transitional

c) defensive

d) combination

a) offensive

From a doorway, a crew directs a hose stream at the ceiling of a burning room. this is a(n) ____ attack

a) combination

b) direct

c) indirect

d) flanking

c) indirect

How should fire fighters approach a vehicle fire?

a) directly from the front

b) 90 degree angle from the side

c) directly from the rear

d) 45-degree angle from the side

d) 45-degree angle from the side

ideally, which should be used to extinguish a chimney fire?

a) class A foam

b) water

c) CO₂

d) Dry Chemical

d) Dry Chemical

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?

a) blitz

b) defensive

c) transitional

d) offensive

b) defensive

in a direct attack, water should be applied until

a) all visible flame is extinguished

b) water droplets fall from the ceiling

c) the fire darkens down

d) the smoke level begins to drop

a) all visible flame is extinguished

In modern residential construction, fresh air enters the attic space through which vent?

a) gable

b) ridge/ peak

c) soffit

d) roof

c) soffit

in which type of operation are large handlines and master streams more often used?

a) offensive

b) tactical

c) defensive

d) indirect

c) defensive

master stream devices are most commonly used for which operation?

a) offensive

b) defensive

c) transitional

d) blitz

b) defensive

operations are conducted from inside the fire building in which type of attack?

a) tactical

b) defensive

c) offensive

d) rescue

c) offensive

peeling or bubbling paint is an indicator of:

a) use of accelerants

b) concealed fire

c) the fires point of origin

d) impending building collapse

b) concealed fire

preventing the spread of fire is the primary objective of which fire attack?

a) indirect

b) direct

c) offensive

d) defensive

d) defensive

studies by NIST and UL have determined that the movement of fire through a structure is dependent primarily on:

a) fuel continuity

b) flow path

c) fire streams

d) building arrangement

b) flow path

What does the E stand for in the acronym SLICE-RS

a) evaluate the facts

b) establish command

c) evaluate extension

d) extinguish the fire

d) extinguish the fire

What happens during a transitional attack?

a) fire attack is made regardless of ventilation status

b) opposing hose lines are used in a coordinated attack

c) the building of origin is considered unsavable

d) an offensive operation is performed from the exterior

d) an offensive operation is performed from the exterior

What is an effect of a hose stream that consists of droplets with a large surface area?

a) water in this pattern penetrates fuels better

b) the stream carries over a longer distance

c) heat absorption is enhanced

d) the stream resisst breakup from the wind

c) heat absorption is enhanced

What is the best item to aid in the extinguishment of smoldering fires in tightly packed combustible materials?

a) dry chemical

b) class A foam

c) piercing nozzle

d) water fog

b) class A foam

Which is the correct method to stop the flow of gas delivered via an underground utility network into a structure?

a) close the valve on the cylinder

b) pinch the pipe closed using grounded pipe clamps

c) turn off the valve at the meter

d) delegate the task to the utility company

c) turn off the valve at the meter

What is the correct method to stop the flow of gas into a structure supplied by an outside LPG storage cylinder?

a) disconnect the cylinder

b) rotate the quarter turn valve at the meter

c) close the valve on the cylinder

d) delegate the task to the gas service company

c) close the valve on the cylinder

what is the minimum flow of a master stream device?

a) 500gpm

b) 450gpm

c) 350gpm

d) 750gpm

c) 350gpm

what is the minimum number of fire fighters needed to advance and maneuver a 2 1/2" handline inside a building?

a) 2

b) 4

c) 1

d) 3

a) 2

what is the minimum size hose line for a vehicle fire?

a) 1"

b) 1 3/4"

c) 1 1/2"

d) 2 1/2"

c) 1 1/2"

what is the target of the hose stream in a direct attack?

a) exposure surfaces

b) the most threatened exposure

c) the base of the fire

d) hot overhead gases

c) the base of the fire

What is the target of the hose stream in an indirect attack?

a) the most threatened exposure

b) as close to the fire as possible

c) the ceiling of the fire room

d) the base of the fire

c) the ceiling of the fire room

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 ?

a) exhaust flow

b) chimney effect

c) thermal pressure gradient

d) flow path

d) flow path

when conducting a transitional attack on an attic fire, streams should be directed through the:

a) ridge vent

b) soffit vents

c) ventilation opening

d) scuttle hole

b) soffit vents

When operating near the suspected area of origin, fire fighters should be especially careful to:

a) collect any potential evidence

b) disturb the area as little as possible

c) locate the point of origin

d) take note of the depth of char

b) disturb the area as little as possible

When shutting down electrical service to a structure, you should:

a) notify the utility company

b) remove the breakers

c) test an outlet

d) apply a lockout device

d) apply a lockout device

Where should additional equipment be staged on a high-rise fire?

a) on the ground floor

b) on the fire floor

c) one or two floors below the fire

d) one or two floors above the fire

c) one or two floors below the fire

Which cancer-causing material might electrical transformers contain?

a) polychlorinated biphenyls

b) polychlorinated vinyls

c) polyphenyl chlorinates

d) biphenyl chlorinates

a) polychlorinated biphenyls

Which fire extinguishing agent would be the best choice on delicate electronic equipment?

a) ordinary dry chemical

b) multipurpose dry chemical

c) carbon dioxide

d) aqueous film-forming foam

c) carbon dioxide

Which hazard is of particular concern with fires involving stacked or piled material?

a) rekindle

b) collapse of the stack

c) toxic exposure

d) interference with sprinkler systems

b) collapse of the stack

Which hazard presents the greatest risk for a fire in a modern vehicle?

a) laminated glass

b) bursting tires

c) exploding fuel tanks

d) components containing pressurized gas

d) components containing pressurized gas

Which hazardous material is commonly found in vehicle batteries?

a) hydrofluoric acid

b) hydrochloric acid

c) sulfuric acid

d) pentaic acid

c) sulfuric acid

Whats another term for deck gun?

a) playpipe

b) turret pipe

c) monitor

d) deluge set

b) turret pipe

which is another term for liquefied petrolum gas?

a) methane

b) natural gas

c) butane

d) propane

d) propane

Which is the best way to shut off electrical service to a building?

a) cut the service drop

b) have a power company employee do it

c) use the main circuit breakers

d) pull the electrical meter from its socket

c) use the main circuit breakers

which is the preferred method to overhaul a trash bin fire?

a) remove all the contents from the bin

b) use a class A foam to saturate the fuel

c) close the lid and the fire burn until all fuel is consumed

d) sort through the contents using long handled tools

b) use a class A foam to saturate the fuel

which special hazard is unique to hybrid vehicles?

a) sulfuric acid

b) high-voltage components

c) compressed gas cylinders

d) slow-drain capacitors

b) high-voltage components

which statement about an offensive exterior attack is correct?

a) its effects are short lived

b) it pushed the fire into uninvolved portions of the structure

c) its effects on the fire is minimal

d) it should not be initiated prior to establishing water supply

a) its effects are short lived

which statement about hydraulic ventilation is correct?

a) it is relatively ineffective

b) it is most efffective with a smooth-bore nozzle

c) two hose lines are required

d) a fog stream is required

d) a fog stream is required

which statement about using hose streams on a transformer is correct?

a) application of water may cause splashing and spread of toxic liquids

b) a wide angle fog stream should be used

c) you should use just enough water to cool, but not extinguish, the fire

d) water should be applied in short bursts

a) application of water may cause splashing and spread of toxic liquids

which statement about ventilating a basement fire is correct?

a) vertical ventilation is the preferred method

b) fire attack should not be delayed while awaiting ventilation

c) in most cases, hydraulic ventialtion performed at the top of the stairs is effective

d) ventilation may be difficult due to the limited number of outside openings

d) ventilation may be difficult due to the limited number of outside openings

Which statement most accurately describes a transitional attack?

a) operations performed while transitioning from defensive to offensive attack

b) a brief offensive exterior attack followed by an interior attack

c) changes to operations made possible by deployment of later arriving resources

d) the simultaneous use of both offensive and defensive strategies

b) a brief offensive exterior attack followed by an interior attack

Which term refers to two crews operating hose lines against each other?

a) opposing handlines

b) freelancing

c) combination attack

d) uncoordinated attack

a) opposing handlines

which type of stream may be safe for use on solar panels?

a) none of these is correct

b) straight

c) solid

d) fog

d) fog

Which vehicle fuel or propulsion system presents the potential for BLEVE?

a) dielsel

b) hybrid/ electric

c) gasoline

d) compressed gas

d) compressed gas

during an indirect attack, you should flow water until the:

a) atmosphere in the room clears

b) ceiling becomes visible

c) smoke level drops to the floor

d) room begins to darken

d) room begins to darken

when is an indirect attack indicated?

a) when flashover is likely

b) when exposures are immediately threatened

c) the fire has vented prior to arrival of fire crews

d) with incipient fire

a) when flashover is likely