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Class A fire extinguishers are useful for all of the following types of fire except:

A. Class A fires
B. Class B fires
C. Class C fires
D. Class D fires

(Note: Class A fires include paper, textiles, and wood.)

Answer :

Final answer:

Class A fire extinguishers are useful for fires involving ordinary combustibles such as paper, textiles, and wood.

Explanation:

Class A fire extinguishers are useful for fires involving ordinary combustibles such as paper, textiles, and wood. However, they are not effective for other types of fires.

Class B fires involve flammable liquids, such as gasoline or oil.

Class C fires involve live electrical equipment.

Class D fires involve combustible metals, such as magnesium or titanium.

Therefore, the correct answer is Option B) Class B fires. Class A fire extinguishers are useful for Class A fires, but not for Class B, C, or D fires.

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