Refrigeration & Air Conditioning Mechanic Red Seal · Question
A technician is called to service a refrigeration system inside a cramped mechanical room that also houses a boiler. The room has limited entry/exit and poor ventilation. Before commencing work, what is the FIRST step the technician should take regarding confined space protocols?
The very first step when identifying a potential confined space is to notify a supervisor and initiate the confined space entry permit process as per provincial
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Question: A technician is called to service a refrigeration system inside a cramped mechanical room that also houses a boiler. The room has limited entry/exit and poor ventilation. Before commencing work, what is the FIRST step the technician should take regarding confined space protocols?
Answer options:
- Don appropriate PPE including a respirator. ✅ Notify a supervisor immediately and request a confined space entry permit.
- Prop open all doors and windows to increase airflow.
- Start the equipment to see if it's operational.
Correct answer: Notify a supervisor immediately and request a confined space entry permit.
Explanation: The very first step when identifying a potential confined space is to notify a supervisor and initiate the confined space entry permit process as per provincial OHS regulations. This ensures proper hazard assessment, atmospheric monitoring, and rescue planning are in place before entry.
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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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