Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which electrical component is used to start a single-phase compressor motor and is typically disconnected once the motor reaches a certain speed?
Start capacitors provide a momentary torque boost, and a potential relay or current relay disconnects them once the motor is running.
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Question: Which electrical component is used to start a single-phase compressor motor and is typically disconnected once the motor reaches a certain speed?
Answer options: ✅ Start capacitor and potential relay.
- Run capacitor and current relay.
- Contactor and overload relay.
- Transformer and rectifier.
Correct answer: Start capacitor and potential relay.
Explanation: Start capacitors provide a momentary torque boost, and a potential relay or current relay disconnects them once the motor is running.
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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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