BD Marine Engineer Class 2 (Second Engineer) Practice Questions - Bangladesh DoS Marine Engineer Officer Class 2 (Second Engineer) Certificate Of Competency Exam

What is the primary purpose of scavenging in a two-stroke marine diesel engine?

To expel burnt exhaust gases from the cylinder and replace them with fresh air before the next compression stroke To cool the piston crown using lubricating oil To atomize the fuel before injection To control the engine's rotational direction

Correct Answer:

To expel burnt exhaust gases from the cylinder and replace them with fresh air before the next compression stroke

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