MEK Exit Exam • Set 2 Question 30 of 30
Function of crankcase relief door is to
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Direct Answer
Option B: release pressure from crankcase
Crankcase relief doors are designed as safety vents to rapidly release any abnormal pressure build-up within the crankcase, which can be caused by a crankcase explosion. This prevents damage to the engine casing and potential injury.
All Options
A
detect the mist inside the crankcase
B
release pressure from crankcase
(Correct Answer)
C
stop the engine
D
reduce the speed of engine
Detailed Explanation & Context
Crankcase relief doors are designed as safety vents to rapidly release any abnormal pressure build-up within the crankcase, which can be caused by a crankcase explosion. This prevents damage to the engine casing and potential injury.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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