The colored background for a _____ extinguisher is a yellow star.

The colored background for a _____ extinguisher is a yellow star.

• A. Class A
• B. Class B
• C. Class D
• D. Class C

Answer: (C)

Color and symbol on extinguisher labels help you identify what kind of fire it fights. A yellow background with a star symbol marks extinguishers designed for metal fires (Class D). These extinguishers are used on fires involving reactive metals like magnesium, sodium, or titanium and require a special dry powder agent. Seeing the yellow star tells you immediately this unit is for metal fires, which is why it’s the best answer. Other classes use different colors or symbols, so the yellow star is unique to Class D.

Color and symbol on extinguisher labels help you identify what kind of fire it fights. A yellow background with a star symbol marks extinguishers designed for metal fires (Class D). These extinguishers are used on fires involving reactive metals like magnesium, sodium, or titanium and require a special dry powder agent. Seeing the yellow star tells you immediately this unit is for metal fires, which is why it’s the best answer. Other classes use different colors or symbols, so the yellow star is unique to Class D.