The indicated position of the fuel injection pump plunger as shown in the illustration, will provide fuel delivery to the diesel engine in an amount approximately equal to __________. Illustration MO-0061
Official USCG Answer & Rule Citation
Correct Answer: Option B — maximum fuel flow
Rotating the plunger to align the vertical slot or helix with the suction port at maximum effective stroke prevents spillage, routing the full displacement of fuel up through the delivery valve to the injector, thereby yielding maximum fuel delivery to the cylinder.
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