Refrigeration & Air Conditioning Mechanic Red Seal · Question
What type of electrical circuit protection device is designed to protect equipment from overcurrents due to faults or overloads?
A circuit breaker automatically interrupts electrical flow when an overcurrent condition is detected, protecting the circuit and equipment.
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Question: What type of electrical circuit protection device is designed to protect equipment from overcurrents due to faults or overloads?
Answer options:
- Transformer
- Contactor ✅ Circuit breaker
- Relay
Correct answer: Circuit breaker
Explanation: A circuit breaker automatically interrupts electrical flow when an overcurrent condition is detected, protecting the circuit and equipment.
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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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