MEK Exit Exam • Set 3 Question 20 of 30

Air starting valve in a Diesel engine _____

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Direct Answer

Option C: 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.

All Options

Moves from side to side

Oscillates

Opens only at engine starting (Correct Answer)

Moves up and down

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).

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