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WorksheetsFire Extinguishers
Total questions: 19
Worksheet time: 14mins
What is the symbol for class D fire extinguishers?
(a)
What two classes have number rating systems?
C&D
A&C
A&B
How many types of extinguishers?
(a)
What chemical is used for multipurpose extinguishers?
Ammonium
Phosphate
sodium potassium bicarbonate
True or False: Dry chem should be deployed at all traffic collisions and cut rescues?
True
False
What does AFFF stand for?
(a)
Size of PW on engine and Truck?
3.5 gallons
2.0 gallons
2.5 gallons
Which class includes combustible metals?
A
B
C
D
Which Fire/Fuel Class includes live electrical equipment?
A
B
C
D
Metal x is what?
(a)
Class A rating is from
1A- 40A
1A-640A
Class B Extinguisher= effective on (a) sq. ft. surface area of Class B.
What is not true of a store pressure water extinguisher?
efficient, plentiful, and inexpensive
35-40ft horizontal range of stream-1 min time of discharge
refill and pressurized at the station
only effective on Class "A" fuels, Freezes at 32 degress.
CO2 Extinguisher: 3 to 8ft. of travel, 8. to (a) second discharge time.
Click the ways a dry chemical works? Click all that apply
Interrupts chemical chain reaction
absorbs
large quantities of heat
Forming a blanket over the fuel
What extra extinguisher does a truck carry?
(a)
What is dry powder used for?
Combustible metal fires
Electrical fires
Common Combustibles
Most common type of extinguisher?
2B-640B
2A-10B-C
1A-40A
Class K Extinguishers are specifically designed for fires in (a) .
