Heavy Duty Equipment Technician Red Seal Exam Prep · Question
What is the function of a crossover relief valve in a hydraulic motor circuit?
Crossover relief valves, typically two relief valves connected between the motor's inlet and outlet lines, protect hydraulic motors from pressure surges that ca
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Question: What is the function of a crossover relief valve in a hydraulic motor circuit?
Answer options:
- To regulate the motor's speed
- To allow regeneration of fluid for faster motor startup ✅ To protect the motor from pressure spikes caused by inertia or external forces
- To block reverse flow through the motor
Correct answer: To protect the motor from pressure spikes caused by inertia or external forces
Explanation: Crossover relief valves, typically two relief valves connected between the motor's inlet and outlet lines, protect hydraulic motors from pressure surges that can occur when the motor is stopped abruptly or subjected to external loads.
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