Question 53Motor Plants - QMED
70% to passWhen an engine fitted with a hydraulic starting system starts up, the starter is protected from the higher speed of the engine by _______________.
Athe immediate increase in hydraulic pressure
Bthe overrunning clutch
Cclosing the starting check valves
Dthe pivoting of the shaft from being engaged with the flywheel
AI Explanation
The correct answer is B) the overrunning clutch. When an engine with a hydraulic starting system starts up, the overrunning clutch protects the starter from the higher speed of the engine. The overrunning clutch is a mechanical device that allows the engine to spin faster than the starter without causing any damage. It disengages the starter once the engine has started, preventing the higher engine speed from being transmitted back to the starter. The other answer choices are incorrect because they do not specifically address the mechanism that protects the starter from the higher engine speed.
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