BD Marine Engineer Class 1 (Chief Engineer) Practice Questions - Bangladesh DoS Marine Engineer Officer Class 1 (Chief Engineer) Certificate Of Competency Exam

What does a Variable Injection Timing (VIT) device on a marine diesel engine fuel pump allow the engineer to achieve?

Change the grade of fuel oil being burned Advance or retard the start of fuel injection relative to engine load, to optimise combustion and control peak firing pressure Change the number of cylinders firing Adjust the turbocharger boost pressure directly

Correct Answer:

Advance or retard the start of fuel injection relative to engine load, to optimise combustion and control peak firing pressure

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