Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the primary safety purpose of using a pressure relief valve on a refrigeration system?
Pressure relief valves are safety devices designed to open and relieve excess pressure to prevent catastrophic system failure due to over-pressurization.
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Question: What is the primary safety purpose of using a pressure relief valve on a refrigeration system?
Answer options:
- To maintain system operating pressure within desired limits ✅ To prevent over-pressurization from exceeding design limits
- To allow for easy refrigerant recovery
- To reduce noise during operation
Correct answer: To prevent over-pressurization from exceeding design limits
Explanation: Pressure relief valves are safety devices designed to open and relieve excess pressure to prevent catastrophic system failure due to over-pressurization.
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Question explanations
- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
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