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18 Questions

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Class A and B Fires

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Questions and Answers

What type of fires have live electrical currents or electrical equipment as a source of fuel?

Garbage fires

Class B fires

Class C fires (correct)

Class A fires

What is a characteristic of Class B fires?

They leave ash behind

They have a low flashpoint (correct)

They are typically found in residential settings

They have a high ignition temperature

What type of fires are commonly found in industrial settings?

Class A fires

Class B fires (correct)

Class C fires

All of the above

What is used to fight Class A fires?

Water and foam agents Signup and view all the answers

What is a characteristic of Class A fires?

They leave ash behind Signup and view all the answers

What should not be used to fight electrical fires?

Water Signup and view all the answers

What type of agent should be used to put out Class D fires involving combustible metal fuel sources?

Non-conductive chemical agent Signup and view all the answers

What is the primary industry where Class D fires are most likely to occur?

Manufacturing and laboratory Signup and view all the answers

In the progression of a compartment fire, what stage comes after the growth stage?

Fully developed stage Signup and view all the answers

What is a key aspect of a successful passive fire protection strategy?

Using fire-resistant construction materials Signup and view all the answers

Which of the following is NOT a type of combustible metal that can cause Class D fires?

Copper Signup and view all the answers

What is NOT a type of fire classification mentioned in the text?

Class E Signup and view all the answers

What is the primary purpose of Class A, B, and C fire testing?

To provide a level of fire protection to the roof deck Signup and view all the answers

What is the typical firefighting medium used in active fire protection systems?

Water Signup and view all the answers

What is the range of flame spread indices for Class B fires?

26-75 Signup and view all the answers

What is the primary characteristic of a Class C fire test?

Light fire test exposure Signup and view all the answers

What is the purpose of a smoke development rating?

To determine the amount of smoke produced over time Signup and view all the answers

What is the typical range of flame spread indices for Class A fires?

0-25 Signup and view all the answers