SAMSA Second Engineer CoC Practice Questions - South African Maritime Safety Authority STCW Section A-III 2 Second Engineer Officer Certificate Of Competency Exam

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When analyzing a main engine draw card (out-of-phase indicator diagram), what does a abnormally high peak firing pressure (Pmax) accompanied by heavy diesel knock indicate?

Engine compression pressure (Pcomp) is too low Fuel injection timing is excessively retarded Fuel injector nozzles are severely choked Fuel injection timing is excessively advanced

Correct Answer:

Fuel injection timing is excessively advanced

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