Alberta Class 4 Practice Questions - Alberta Class 4 Commercial Driver's Licence Knowledge Test Exam

Why is a leaking exhaust system considered a safety hazard on a commercial passenger vehicle?

It causes the engine to consume fuel much faster It can allow toxic carbon monoxide gas to enter the passenger cabin, poisoning occupants It decreases the high-speed acceleration of the vehicle It violates noise bylaws but does not present any physical health hazard

Correct Answer:

It can allow toxic carbon monoxide gas to enter the passenger cabin, poisoning occupants

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