Division Operations Module 3 – Advanced Practice Test

Which of the following is NOT one of the Three Nevers of CO alarms?

Never indicate detector malfunction Never guarantee the safety of the premise Never use gas powered fans to vent Never evacuate the premises

Correct Answer:

Never evacuate the premises

Explanation:

The idea being tested is how you should respond to a CO alarm. When carbon monoxide is detected, the priority is to get everyone to fresh air immediately and call for help from outside the building. CO is invisible and dangerous, so delaying evacuation increases the risk of poisoning. Therefore, the statement that says never evacuate is not part of the recommended precautions—evacuation is the correct and necessary action. The other statements reflect actions you should avoid because they could give a false sense of safety or spread the gas (for example, assuming the alarm means there’s no danger, or using fans to vent CO). In short, evacuate right away, then seek emergency assistance.

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