Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which of the following is typically a consequence of insufficient airflow over the condenser?
Insufficient airflow over the condenser reduces its ability to reject heat. This causes the refrigerant to condense at a higher temperature and pressure, leadin
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Question: Which of the following is typically a consequence of insufficient airflow over the condenser?
Answer options:
- Lower-than-normal head pressure and subcooling ✅ Higher-than-normal head pressure and discharge temperature
- Increased suction pressure and superheat
- Lower compressor current draw
Correct answer: Higher-than-normal head pressure and discharge temperature
Explanation: Insufficient airflow over the condenser reduces its ability to reject heat. This causes the refrigerant to condense at a higher temperature and pressure, leading to higher head pressure and discharge temperatures, and ultimately reduced system efficiency.
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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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