Question 105Motor Plants - QMED70% to pass
Which of the following conditions is most likely to occur if the electric starter motor pinion gear fails to disengage from the flywheel of a diesel engine after the engine has started?
AI Explanation
The correct answer is B) Starting motor will dangerously overspeed.
If the electric starter motor pinion gear fails to disengage from the flywheel after the engine has started, the spinning flywheel will continue to drive the starter motor. This will cause the starter motor to dramatically increase in speed, leading to a dangerous overspeed condition that could potentially damage the starter motor.
The other answer choices are incorrect because: A) The engine will not stop if the starter motor pinion gear fails to disengage, as the engine is already running. C) The flywheel may not necessarily be damaged, but the starter motor will be at risk. D) Combustion gases will not enter the air starting system, as this scenario does not involve the air starting system.
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