How well does masonry conduct heat?
A: Very well; almost instantaneously
B: Very well after a few moments
C: Moderately well
D: Poorly
D: Poorly
What is the term for a roof that has sloping or inclined surfaces?
Pitched
The basic procedure for extinguishing a vehicle fire is:
Approach the vehicle from side, being cautious around wheel/tire area
The safest way to attack a fully involved vehicle is from the what side when possible?
upwind and uphill
What is the method of fire suppresion most widely used on Class A combustibles
Cooling
A typical siamese appliance will have ______ connections
2 female and 1 male
Define: Incipient
The initial stage of a fire
Types of Fires
Class A - Ordinary combustibles
Class B - Flammable or combustible liquids
Class C - Energized electrical equipment
Class D - Combustible metals
Class K - Combustible cooking media
An extinguishing agent usedin dry chemical fire extinguishers that can be used on Class A, B, and C fires
Ammonium phosphate
Carbon dioxide is how many times heavier that air
1.5 times
Types of fire extinguishers
Water
Dry chemical
Carbon Dioxide
Foam
Wet chemical
Halogenated agents
Dry powder
A tool that has a steel bar with 2main features: A large pick and a large chisel or fork
Kelly tool
Six categories of tools:
Rotating
Pushing/Pulling
Prying/Spreading
Striking
Cutting
Muti-Function
Why should hydrants be opened slowly?
A: To avoid a pressure surge
B: Because the valve assemblies are fragile
C: To let the drain system catch up
D: Rapid opening can cause the wrench to catch the water flow and spin suddenly with great force
A: To avoid a pressure surge
How, if at all, does the water delivered to fire hydrants differ from the water delivered into homes?
A: Hydrant water is untreated
B: It does not differ
C: Home water is non-potable
D: Hydrant water is harder
B: It does not differ
When the order is received to open a hydrant, how should it be opened?
A: As rapidly as possible
B: One turn, wait one minute, another turn, wait another minute, etc.
C: Four turns, wait half a minute, four more turns, wait another half minute, etc.
D: Slowly
D: Slowly
What kind of valve enables tankers to off-load their entire load of water very quickly?
A: An iris valve
B: A dump valve
C: A gravity valve
D: A spring-assist valve
B: A dump valve
Rapid intervention companies/crews are established to:
A: help create a blitz offensive fire attack.
B: rescue fire fighters.
C: rescue occupants.
D: protect exposures.
B: rescue fire fighters.
What is one simple procedure that can effectively keep smoke and heat out of a room or area?
A: Setting up an exhaust fan
B: Shutting a door
C: Turning on the ceiling fans
D: Turning on sink faucets
B: Shutting a door
When deciding where to overhaul, what is one clue fire fighters should look for?
A: The sound of gurgling pipes behind a wall
B: Openings that would allow fire to spread
C: Carpet that has discolored non-uniformly as it has become wet
D: Window panes that have a light dusting of soot on them
B: Openings that would allow fire to spread
Why can't gasoline-powered pumps be operated safely inside a building to evacuate water?
Because they generate carbon monoxide
How long should overhaul operations continue?
Until the Incident Commander is satisfied that no smoldering fires are left
Once the fire is out, when, if ever, can fire fighters performing salvage operations work without SCBA?
Only if the atmosphere has been tested and declared safe by the Safety Officer
When a Fire fighter is to perform ventilation of a window, the ladder should be placed?
With the ladder tip about even with the top of the window
The smallest size hoseline the NFPA recommends for advancing on a vehicle fire is:
1 1/2 inch
When executing a blanket drag, you should:
B. roll victim on side, position blanket underneath, and roll victim back to original position
A stream designed to be as compact as possible with litle shower or spray is known as a _______ stream.
Solid
Nozzles with flows in excess of _______ gallons per minute arenot recommended for handlines
300
Fire stream types are generally classified as:
solid and fog
A stream made by using a smooth-bore nozzle to produce a penetrating stream of water that has greater reach and penetrating power than a straight stream
Solid stream
A stream made by using an adjustable nozzle to provide a straight stream of water; greater than a fog stream.
Straight stream
The primary objective in a Defensiveoperation is to:
prevent the fire from spreading
The objective in an Offensiveoperation is for firefighters to:
get close enough to the fire to apply extinguishing agents at close range
Large handlines are are defined as hoses that are at least
2.5 inches in diameter
The most commonly used master stream devices flow between (gpm)
500 and 1000 gpm
The most frequently used size for interior fire attack is:
1.75 inch handlines
The most effective means of fire suppression in most situations and uses straight or solid hose streams to deliver water directly onto the base of the fire
Direct attack
The approach used to quickly remove as much heat as possible from the fire atmosphere. Effective at preventing flashover from occuring.
Indirect attack
When water is converted to steam, it expands to occupy a volume that is
1700 times greater than the volume of water
The device that is permanently mounted on a vehicle and equiped with a piping system that is intended to flow large amounts of water directly onto a fire or exposed building is a(n)
Deck gun
BLEVE
Boiling-Liquid, Expanding-Vapor Expolosion
A master stream device that is placed on the ground that can be positioned wherever a master stream is needed
Portable monitor
The best way to prevent a BLEVE is to
Direct heavy streams of water onto the tank from a safe distance
A nozzle attached to the end of a straight ladder truck that is designed to provide large volumes of water from an elevated position
Ladder pipe
Fire involving ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics
CLASS A Fires
Fires involving flammable and combustible liquids, oils, grease, tars, oil-based paints, lacquers, and flammable gases
CLASS B Fires
Fire involving energized electrical equipment where the electrical conductivity of the extinguishing media is of importance
CLASS C Fires
Fires involving combustible metals such as magnesium, titanium, zirconium, sodium, and potassium
CLASS D Fires
Fires involving combustible cooking media such as vegetable oils, animal oils, and fats
CLASS K Fires
Composite SCBA cylinders must be hydrostatically tested every: