Refrigeration & Air Conditioning Mechanic Red Seal · Question
Before entering a walk-in freezer to perform maintenance, a refrigeration mechanic must perform a confined space assessment. Which of the following is NOT a primary criterion for defining a space as a confined space under provincial OHS regulations?
A confined space is generally defined as an enclosed or partially enclosed space that is not designed for continuous human occupancy, has restricted entry or ex
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Question: Before entering a walk-in freezer to perform maintenance, a refrigeration mechanic must perform a confined space assessment. Which of the following is NOT a primary criterion for defining a space as a confined space under provincial OHS regulations?
Answer options: ✅ It is designed for continuous human occupancy.
- It has restricted entry and exit.
- It is large enough for a worker to enter and perform work.
- It may contain a hazardous atmosphere.
Correct answer: It is designed for continuous human occupancy.
Explanation: A confined space is generally defined as an enclosed or partially enclosed space that is not designed for continuous human occupancy, has restricted entry or exit, and is large enough for a worker to enter to perform work, often with potential for hazardous atmosphere. The opposite – 'designed for continuous human occupancy' – is a defining characteristic of a non-confined space.
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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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