#1
Which fire extinguisher is suitable for Class A fires?
Water
ExplanationEffective for extinguishing ordinary combustibles like wood or paper.
#2
What type of fires can a Class C fire extinguisher be used for?
Electrical fires
ExplanationDesigned to safely extinguish fires involving electrical equipment.
#3
What does the acronym PASS stand for in the context of using a fire extinguisher?
Pull, Aim, Squeeze, Sweep
ExplanationSequence of actions for using a fire extinguisher effectively.
#4
In a Class B fire, what are you extinguishing?
Flammable liquids and gases
ExplanationFires involving combustible liquids or gases.
#5
What is the recommended method for using a fire extinguisher on a fire?
Direct spray at the base of the flames
ExplanationTargets the fuel source of the fire for efficient extinguishing.
#6
Which fire extinguisher is NOT suitable for use on electrical fires?
Water
ExplanationUsing water on electrical fires can pose electrocution risks.
#7
What is the purpose of a fire extinguisher's pin and tamper seal?
To prevent accidental discharge
ExplanationEnsures the extinguisher is only used when intended.
#8
Which fire extinguisher is suitable for fires involving flammable metals?
Dry Powder
ExplanationEffective against fires caused by flammable metals.
#9
Which fire extinguisher is typically color-coded with a black label?
CO2 (Carbon Dioxide)
ExplanationIdentified by a black label and is suitable for many types of fires.
#10
Which fire extinguisher is specifically designed for use in aircraft?
Purple K
ExplanationTailored for extinguishing fires in aircraft, including engine fires.
#11
What does the term 'flammable limits' refer to in fire safety?
The concentration of a substance in the air that can ignite
ExplanationDefines the range of concentrations at which a substance can ignite.
#12
What is the main distinguishing feature of a Class K fire extinguisher?
Specifically for cooking oil fires
ExplanationPrimarily used for kitchen fires involving cooking oils and fats.
#13
What is the recommended distance when using a fire extinguisher on a fire?
5 to 10 feet
ExplanationEnsures safe application and effectiveness of the extinguishing agent.
#14
What is the primary extinguishing agent in a Halon fire extinguisher?
Halon
ExplanationUtilizes Halon gas to suppress fires by interrupting chemical reactions.
#15
Which fire extinguisher is suitable for Class D fires involving combustible metals?
Dry Powder
ExplanationEffective for suppressing fires caused by combustible metals like magnesium or titanium.
#16
What is the primary use of a Purple K fire extinguisher?
Metal fires
ExplanationSpecifically designed for extinguishing fires involving combustible metals.
#17
Which fire extinguisher is effective for metal fires, such as magnesium or titanium?
Dry Chemical
ExplanationDesigned to smother fires involving reactive metals.