Question 181Motor Plants - Assistant Engineer
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 fitted with a hydraulic starting system starts up, the starter is protected from the higher speed of the engine by an overrunning clutch. The overrunning clutch allows the starter to spin freely once the engine has started and is running under its own power, preventing damage to the starter motor. The other answer choices do not accurately describe the mechanism that protects the starter in this scenario.
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