Motor Plants & Auxiliary Boilers USCG Question #1502 (Set 31)

In the illustration shown, moving the component labeled "E", further to the left, will result in _____. Illustration MO-0061

USCG Exam Illustration MO-0061
USCG Examination Diagram: Illustration MO-0061
Official USCG Answer & Rule Citation

Correct Answer: Option A — a shorter fuel injection cycle

Moving control component 'E' alters the effective stroke of the pump plunger by earlier uncovering of the spill port, resulting in a shorter fuel injection duration and reduced fuel delivery per cycle.

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