Multiple Choice Question (MCQ)
Question: Which type of extinguisher is used for class D fire?
A.
Foam extinguisher
B.
Dry powder extinguisher
C.
Water filled extinguisher (gas cartridge type)
D.
Water filled extinguisher (stored pressure type)
Correct Answer: Dry powder extinguisher
Explanation
According to Pascal’s law, the intensity of pressure at any point in a fluid at rest is same in all directions.
Pascal's law is applied in hydraulic brake system.