Heavy Duty Equipment Technician Red Seal Exam Prep · Question
When pressure testing a hydraulic system, why is it important to use a gauge with a maximum pressure rating significantly higher than the expected system pressure?
Using a gauge with a higher rating than the system's maximum pressure prevents the gauge from being damaged or destroyed if the system experiences a pressure sp
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Question: When pressure testing a hydraulic system, why is it important to use a gauge with a maximum pressure rating significantly higher than the expected system pressure?
Answer options:
- To improve gauge accuracy ✅ To prevent gauge damage from overpressure
- To reduce fluid leakage
- To allow faster pressure readings
Correct answer: To prevent gauge damage from overpressure
Explanation: Using a gauge with a higher rating than the system's maximum pressure prevents the gauge from being damaged or destroyed if the system experiences a pressure spike or operates above its normal range.
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