Electrician Red Seal · Question
In a hazardous location classified as Class I, Division 1, what does the 'Class I' refer to?
In the hazardous location classification system, 'Class I' indicates that flammable gases or vapors are, or may be, present in the air in quantities sufficient
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Question: In a hazardous location classified as Class I, Division 1, what does the 'Class I' refer to?
Answer options:
- The presence of combustible dusts. ✅ The presence of flammable gases or vapors.
- The likelihood of the hazard being present.
- The approval rating for the equipment.
Correct answer: The presence of flammable gases or vapors.
Explanation: In the hazardous location classification system, 'Class I' indicates that flammable gases or vapors are, or may be, present in the air in quantities sufficient to produce explosive or ignitable mixtures.
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- A residential garage is to be wired with a 15 A, 120 V duplex receptacle. According to the Canadian Electrical
- During a renovation of a commercial kitchen, an electrician needs to replace an old single-phase, 240 V, 5 kW
- A commercial kitchen is being renovated, and several new 4 kW, 208 V, single-phase electric ovens are being in
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