What are the three elements of the fire triangle?

• Heat, Smoke, Oxygen

• Heat, Water, Oxygen

• Fuel, Water, Carbon Dioxide

• Heat, Fuel, Oxygen

Which class of fire involves ordinary combustibles like wood and paper?

• Class D

• Class A

• Class B

• Class C

What type of fire requires non-conductive agents like CO2 for extinguishing?

• Class B

• Class C

• Class A

• Class K

Which fire suppression system is primarily used for Class B fires?

• Sprinkler Systems

• Dry Chemical Systems

• Foam Systems

• Wet Chemical Systems

What is the minimum concentration of oxygen required for a fire to ignite?

• 25%

• 21%

• 16%

• 10%

Which class of fire involves cooking oils and fats?

• Class B

• Class D

• Class A

• Class K

What type of system uses water to extinguish fires and is activated by heat?

• Dry Chemical Systems

• Foam Systems

• Carbon Dioxide Systems

• Sprinkler Systems

Which class of fire involves combustible metals?

• Class C

• Class D

• Class B

• Class A

What is the primary function of dry chemical systems?

• To interrupt the chemical reaction of the fire

• To smother the flames

• To displace oxygen

• To cool the flames

Which fire class requires specialized extinguishing agents due to the risk of exacerbation with water?

• Class D

• Class C

• Class B

• Class A