Refrigeration & Air Conditioning Mechanic Red Seal · Question
A refrigeration system has a pressure vessel with a maximum allowable working pressure (MAWP) of 2500 kPa. The pressure relief valve discharge capacity must be sufficient to prevent the pressure from rising above what percentage of the MAWP when relieving?
CSA B52 states that the capacity of the pressure relief device shall be sufficient to prevent the pressure from rising more than 10% above the set pressure of t
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Question: A refrigeration system has a pressure vessel with a maximum allowable working pressure (MAWP) of 2500 kPa. The pressure relief valve discharge capacity must be sufficient to prevent the pressure from rising above what percentage of the MAWP when relieving?
Answer options: ✅ 100%
- 110%
- 120%
- 150%
Correct answer: 100%
Explanation: CSA B52 states that the capacity of the pressure relief device shall be sufficient to prevent the pressure from rising more than 10% above the set pressure of the device or 100% of the MAWP, whichever is lower.
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- 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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