Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the purpose of a sight glass with a moisture indicator?
A sight glass allows visual inspection of refrigerant flow and changes color to indicate the presence of moisture in the system.
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Question: What is the purpose of a sight glass with a moisture indicator?
Answer options: ✅ To check for adequate refrigerant charge and moisture content
- To monitor the oil level in the compressor
- To measure the system's subcooling
- To detect gas leaks in the refrigerant lines
Correct answer: To check for adequate refrigerant charge and moisture content
Explanation: A sight glass allows visual inspection of refrigerant flow and changes color to indicate the presence of moisture in the system.
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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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