WorksheetsFire Suppression, Foam, BC, Forcible Entry, Fire Ext Quiz
Total questions: 35
Worksheet time: 18mins
Clean agents extinguish fire by:
removing the burning fuel.
cooling the burning material.
interrupting the combustion reaction.
removing oxygen from the compartment.
High-quality foam bubbles are created through the process of:
aeration
expansion
separation
saponification
If a firefighter uses a Z pattern to apply water to the hot gas layer and then the burning fuels at the floor level, he or she is using a (an) _____ fire attack.
direct
indirect
transitional
combination
At what point should a firefighter close a sprinkler system's main control valve?
Upon arrival at the structure
Immediately prior to fire attack
Once the pumper has been connected to the FDC
Once the fire is under control and the IC gives the order
What is the purpose of a lockout/tagout device?
Identify the firefighter in charge of shutting down utilities
Identify the area where the main power supply is located
Prevent power from bring turned back on before it is safe
Prevent automatic sprinklers from accidentally being activated
If a large pool of flammable liquid is burning in an open area, the ____ method of foam application may be the most effective method to use.
roll-on
rain-down
bank-down
spread-across
If an LNG tank on a vehicle leaks or is on fire, firefighters should:
stay clear of the vapor cloud.
allow the fire to burn itself out.
proceed with operations as normal.
apply water using a narrow fog pattern.
When a shed or other unattached structure is on fire, the primary objective is to:
Protect exposures.
remove the fuel source.
fight the fire from the interior.
save the contents of the building.
What action should be taken if a pressurized vessel containing flammable gas is exposed to flames?
Apply a fog stream of water
Apply a solid stream of water
Apply foam using the roll-on method
Apply foam using the bank-down method
Which is a characteristic of foam nozzles?
Lower quality foam than fog nozzles
Longer stream reach than fog nozzles
More versatile overall than fog nozzles
shorter stream reach than fog nozzles
Type II construction buildings are composed of:
prefabricated wood components.
large-dimensioned lumber or laminated wood.
metal and wood components that increase the fuel load.
noncombustible materials that do not add to the fuel load.
The most common type of factory-built home that firefighters will encounter is the ______ home.
mobile
pre-cut
modular
panelized
A (an) ______ roof is often found on buildings that require a large open area to be covered without being supported by pillars or columns.
Arched
Pitched
Lantern
Mansard
The open web design of truss joints:
permits rapid fire spread in multiple directions.
restricts the spread of fire to the component's length.
provides greater stability than a heavy bean during a fire.
allows firefighters to operate longer on a roof during a fire.
A ____ is an example of a striking tool used for forcible entry.
pike pole
kelly tool
pick-head axe
sledge hammer
Fiberglass tool handles should be maintained by:
varnishing them.
washing with a mild detergent.
rubbing them with boiled linseed oil.
using adhesive barcodes to mark them.
Type IV buildings are resistant to structural collapse because of the:
use of open web floor joists.
use of noncombustible interior finishes.
thickness of the reinforced concrete walls.
mass of the heavy timber structural members.
Floors at ground level may consist of _____or a floor assembly made up of joists over a crawl space.
steel
a reinforced concrete slab
gypsum board
bricks
If you can see the hinges of a door, it:
swings toward you.
swings away from you.
will require power tools to force.
cannot be opened using conventional forcible entry methods.
K-tools and shove knives are use for:
breaking glass in doors.
through-the-lock forcible entry.
forcing security doors and gates.
breaching the walls of a structure.
Which location would likely be protected by a fire door?
The front door on a residential home.
The entrance to an office exit stairwell.
Separating a dining room from a kitchen.
As an emergency exit door on a movie theater.
Plaster or gypsum wall covering on interior walls:
requires the use of power saws to be breached.
can cause increased fire spread within the compartment.
is designed to provide structural stability to the compartment.
is designed to provide fire resistance and limit fire spread within the structure.
Under fire conditions, a green roof can:
act as an exit point for some types of ventilation.
accelerate structural failure due to the increased dead load.
provide the most stable surface from which to ventilate.
present a significant electrical hazard for firefighters on the roof.
Building codes require that:
metal doors are made from aluminum.
glass doors are made from plexiglas.
glass doors are made from tempered glass.
metal doors are made from corrugated steel.
Which type of window has one or two side-hinged sashes and usually opens outward?
Picture window
Display window
Pivoting window
Casement window
Which type of factory-built homes are assembled on-site from components constructed of foam insulation sandwiched between sheets of plywood?
Mobile homes
Pre-cut homes
Modular homes
Panelized homes
Which type of building construction may have interior walls and beams constructed of wood, but requires that exterior walls be made of noncombustible or limited combustible materials?
Type I
Type III
Type IV
Type V
What are the three main types of roofs that firefighters are likely to encounter?
Flat, pitched, arched
mansard, shed, lantern
Flat, gambrel, bowstring
Pitched, arched, gambrel
Portable fire extinguishers are classified according to the:
place where they were manufactured.
amount of time they have been in service.
certification level required to operate them.
type of fire they are designed to extinguish.
How would a fire containing plastics be classified?
Class A
Class C
Class D
Class K
Which extinguishing agent should be used for a Class D fire?
Dry chemical
Wet chemical
Dry powder
Class D foam
On which type of fires are stored-pressure water-mist extinguishers safe and effective to use?
Class B
Class C
Combustible metal fires
Combustible cooking oil fires
What is a characteristic of carbon dioxide (CO2) extinguishers?
Most effective in extinguishing Class D fires
CO2 gas displaces oxygen to smother the fire
Requires freeze protection due to icy discharge
CO2 gas cools the fire to subzero temperature
When operating a portable fire extinguisher, it is safest to approach the fire:
at a 45 degree angle.
with your back to the fire.
with the wind at your back.
with the wind blowing toward you.
What action should be taken if an entire extinguisher is discharged, but the fire is not extinguished?
Withdraw and reassess the situation.
Try to use a different class of fire extinguisher.
Notify a supervisor and stand by for further instruction.
Wait a moment and try another extinguisher of the same class.
