Question 22 of 30
Air starting valve in a Diesel engine _____
A
Oscillates
B
Moves up and down
C
Moves from side to side
D
Opens only at engine starting
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Answer & Explanation
The correct answer is Option D: Opens only at engine starting.
The air starting valve in a diesel engine is designed to operate intermittently. It opens only during the starting sequence to admit compressed air into the cylinders, initiating rotation; it remains closed during normal operation.