Question 129Motor Plants - 1st Asst/Chief
70% to passWhich of the following statements represents the function of the plunger flange labeled "A" shown in the illustration? Illustration MO-0061
AIt prevents the plunger from rotating in the barrel.
BIt limits the actual stroke of the plunger.
CIt takes the plunger off stroke when injection is completed.
DIt transmits the control rack setting to the plunger.
AI Explanation
The correct answer is D) It transmits the control rack setting to the plunger. The plunger flange labeled "A" in the illustration MO-0061 functions to transmit the control rack setting to the plunger. This allows the plunger to adjust its position and timing based on the control rack setting, which is a critical component in the fuel injection process. The other options are incorrect because: A) The plunger is prevented from rotating by other components, not the flange. B) The stroke of the plunger is limited by the design of the fuel injection pump, not the flange. C) The plunger is taken off stroke by the action of the control rack, not the flange.
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