FIT-3 CH 8, 9, 10, &11
Carbon dioxide is very effective on which two classes of fire?
B & C
Which classification of fire extinguishers involves energized electrical equipment?
CLASS C
Wet chemical extinguishing agents are the primary and most effective agent against what type of fire?
CLASS K
All of the following are protection objectives of fixed automatic foam systems EXCEPT:
DIRECTING
CLASS C REFERS TO FLAMMABLE LIQUIDS
FALSE
Foam is an optimal extinguishing agent for Class C and D fires.
FALSE
True or False? Air tests work on all systems but water spray.
FALSE
True or False? Dry foam-water sprinkler systems use protein/fluoroprotein foams.
FALSE
True or False? Local application systems fill an entire enclosure with CO2.
FALSE
True or False? Pre-engineered systems are systems that have undergone "full engineering."
FALSE
True or False? Wet chemical extinguishing systems usually have a capacity of 10 gallons or higher.
FALSE
Which of the following extinguishing agents forms a vapor barrier between the Class B fuel and the atmosphere, thus cooling and smothering the fire?
FOAM
Which of the following requires extinguishers in almost every new occupancy classification?
INTERNATIONAL BUILDING CODE
Of the four approved delivery systems for carbon dioxide, which one protects a specific piece of equipment, process, or operation by discharging carbon dioxide directly onto the hazard?
LOCAL APPLICATION SYSTEM
Which of the following activation methods is NOT used to discharge the carbon dioxide extinguishing system?
MANUALLY BY A FIRE ALARM COMM CENTER
Which NFPA standard covers the design, installation, inspection, testing, and maintenance of fixed, semi-fixed, and portable foam extinguishing systems?
NFPA 11
Dry chemical extinguishing agents are not considered to be dangerous or toxic, although _________ can occur once it is expelled from the system.
RESPIRATORY PROBLEMS
_____________ have both the pressurized expelling gas and the extinguishing agent mixed in the same tank, and use gas to push the extinguishing agent out through a nozzle or hose when operated.
STORED PRESSURE EXTINGUISHERS
Who is responsible for the inspection, testing, and maintenance of fire extinguishers to ensure that they will be in working order when needed?
THE PROPERTY OWNER
Which system protects enclosed hazards and areas within a structure, such as paint spray booths?
TOTAL FLOODING SYSTEM
AMMONIUM PHOSPHATE IS YELLOW
TRUE
True or False? Halocarbon subcategories identify the chemical composition of the mixture.
TRUE
True or False? Halocarbons are also called clean agents.
TRUE
True or False? Low-pressure systems can hold as much as 60 tons of carbon dioxide.
TRUE
True or False? NFPA 101 does not require fire extinguishers in new educational occupancies.
TRUE
True or False? NFPA 16 covers deluge foam-water sprinkler or spray systems.
TRUE
True or False? The lettering system used to classify fires is also used to classify extinguishers.
TRUE
True or False? Ultra-high-speed water spray systems apply water to hazards within 100 milliseconds of flame detection.
TRUE
True or False? Wet and dry chemical systems use different kinds of nozzles.
TRUE
Which fixed foam system component is designed so that when water moves across an open orifice within the device, it creates a lower pressure that draws foam concentrate into the water stream?
VENTURI PROPORTIONER
Which system is a fixed fire protection system that discharges a very fine spray with water droplets that must be 1000 microns or less in size?
WATER MIST SYSTEM
Which of the following Class A fire extinguisher ratings is based on outdoor tests?
30-A
When carbon dioxide is stored at _____, it is considered low-pressure storage.
300 PSI
Carbon dioxide is approximately how much heavier than air?
50%
High-pressure storage for carbon dioxide is:
850 PSI
Since many manufacturers do not combine the wet chemical agent and expelling gas, which of the following are used to store the expelling gas until it is needed when the system activates?
AGENT STORAGE CONTAINERS
No matter the pipe size, a flow rate of ____________ will provide the necessary volume to remove any debris in the line.
ALL OF THESE ARE CORRECT
Wet chemical extinguishing agents use water-based solutions mixed with any of the following agents or additives, EXCEPT:
AQUEOUS FILM FORMING FOAM
Which of the following can be used on Class A and Class B fires?
AQUEOUS FILM FORMING FOAM
Which is the standard to follow for establishing extinguishing systems for cooking operations?
UL 300
