Question 30 of 30
Function of a cylinder head relief valve is to
A
prevent crankcase explosion
B
stop the engine
C
reduce the speed of engine
D
release excessive pressure
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Answer & Explanation
The correct answer is Option D: release excessive pressure.
A cylinder head relief valve is a safety device that opens automatically to release excessive pressure from within the cylinder during operation. This prevents damage to the engine components and potential hazards from over-pressurization.