4AE3 U4 C4 Obj 2

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Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

Class B

Class A (correct)

Class C

Class D

What is the primary method associated with extinguishing a Class A fire?

Interruption of the combustion chain with dry chemicals

Coating the fuel with dry chemicals

Cooling the fire with water and water solutions (correct)

Interruption of the combustion chain by halogenated agents

Which type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

Dry chemicals (correct)

Water and water solutions

Halogenated agents

None of the above

What type of fire extinguishing media does not penetrate and soak the fuel like water does?

Dry chemicals Signup and view all the answers

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, causing it to go out?

Dry chemicals Signup and view all the answers

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

Dry chemicals Signup and view all the answers

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, similar to dry chemicals?

Halotron Signup and view all the answers

Which gas is an environmentally acceptable replacement for halon gases?

Halotron Signup and view all the answers

What is the main reason for removing oxygen from the area during a fire?

To smother the fire Signup and view all the answers

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

It does not cool the fuel Signup and view all the answers

What is the main reason for banning halon gases in Canada?

Their harmful effect on the ozone layer Signup and view all the answers

What can be used to smother Class A fires?

Fire blankets Signup and view all the answers

Why is carbon dioxide (CO2) gas not recommended for use on a Class A fire?

It does not smother the fire Signup and view all the answers

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

Oxygen can access the hot fuel Signup and view all the answers

What is the main purpose of using fire blankets to smother Class A fires?

To remove oxygen from the area Signup and view all the answers

Which type of fire extinguishing media is not recommended for use on a Class A fire because it does not cool the fuel?

Carbon dioxide (CO2) Signup and view all the answers

What is the main reason for removing oxygen from the area during a fire?

To prevent the fire from spreading Signup and view all the answers

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

It does not effectively smother the fire Signup and view all the answers

What is the main reason for banning halon gases in Canada?

They contribute to ozone layer depletion Signup and view all the answers

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

It allows oxygen to access the hot fuel Signup and view all the answers

Which gas is an environmentally acceptable replacement for halon gases?

Halotron Signup and view all the answers

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

Halotron Signup and view all the answers

What is the primary method associated with extinguishing a Class A fire?

Applying water to cool the fuel Signup and view all the answers

Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

Class A Signup and view all the answers

Which type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

Dry chemicals Signup and view all the answers

What is the main purpose of using fire blankets to smother Class A fires?

To exclude oxygen Signup and view all the answers

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

Halotron Signup and view all the answers

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

The fire is extinguished Signup and view all the answers

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

It is not effective in cooling the fire Signup and view all the answers

What is the main reason for removing oxygen from the area during a fire?

To exclude oxygen Signup and view all the answers

Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

Class A Signup and view all the answers

What is the primary method associated with extinguishing a Class A fire?

Cooling the fire with water Signup and view all the answers

What type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

Dry chemicals Signup and view all the answers

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

It does not cool the fuel Signup and view all the answers

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, causing it to go out?

Halotron Signup and view all the answers

Which gas is an environmentally acceptable replacement for halon gases?

Halotron Signup and view all the answers

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

Dry chemicals Signup and view all the answers

Which type of fire extinguishing media is not recommended for use on a Class A fire because it does not cool the fuel?

Carbon dioxide (CO2) Signup and view all the answers

What is the main reason for banning halon gases in Canada?

They deplete the ozone layer Signup and view all the answers

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

It allows oxygen to access the hot fuel Signup and view all the answers

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, similar to dry chemicals?

Halotron Signup and view all the answers

What is the main purpose of using fire blankets to smother Class A fires?

To remove oxygen from the area Signup and view all the answers

Which gas is an environmentally acceptable replacement for halon gases?

Halotron Signup and view all the answers

What type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

Water Signup and view all the answers

Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

Class A Signup and view all the answers

4AE3 U4 C4 Obj 2

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Questions and Answers

Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

What is the primary method associated with extinguishing a Class A fire?

Which type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

What type of fire extinguishing media does not penetrate and soak the fuel like water does?

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, causing it to go out?

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, similar to dry chemicals?

Which gas is an environmentally acceptable replacement for halon gases?

What is the main reason for removing oxygen from the area during a fire?

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

What is the main reason for banning halon gases in Canada?

What can be used to smother Class A fires?

Why is carbon dioxide (CO2) gas not recommended for use on a Class A fire?

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

What is the main purpose of using fire blankets to smother Class A fires?

Which type of fire extinguishing media is not recommended for use on a Class A fire because it does not cool the fuel?

What is the main reason for removing oxygen from the area during a fire?

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

What is the main reason for banning halon gases in Canada?

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

Which gas is an environmentally acceptable replacement for halon gases?

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

What is the primary method associated with extinguishing a Class A fire?

Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

Which type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

What is the main purpose of using fire blankets to smother Class A fires?

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

What is the main reason for removing oxygen from the area during a fire?

Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

What is the primary method associated with extinguishing a Class A fire?

What type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

Why is carbon dioxide (CO2) not recommended for use on a Class A fire?

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, causing it to go out?

Which gas is an environmentally acceptable replacement for halon gases?

What type of fire extinguishing media does not reduce the temperature of the fuel like water does?

Which type of fire extinguishing media is not recommended for use on a Class A fire because it does not cool the fuel?

What is the main reason for banning halon gases in Canada?

What happens when carbon dioxide (CO2) dissipates quickly after being discharged?

Which type of fire extinguishing media interferes with the self-sustaining chain reaction of the fire, similar to dry chemicals?

What is the main purpose of using fire blankets to smother Class A fires?

Which gas is an environmentally acceptable replacement for halon gases?

What type of fire extinguishing media coats the fuel, separating it from the oxygen in the air?

Which class of fire consists of ordinary combustible materials such as wood, cloth, paper, rubber, and many plastics?

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