Ontario Class C Practice Test · Question
Why is a leaking exhaust system particularly dangerous in a commercial passenger vehicle?
A leaking exhaust system can allow carbon monoxide to enter the cabin, which is a life-threatening hazard for both the driver and passengers.
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Question: Why is a leaking exhaust system particularly dangerous in a commercial passenger vehicle?
Answer options:
- It makes the vehicle too loud for passenger comfort.
- It reduces the fuel efficiency of the engine.
- It causes the engine to fail the provincial emission test. ✅ It can allow poisonous carbon monoxide to enter the passenger area.
Correct answer: It can allow poisonous carbon monoxide to enter the passenger area.
Explanation: A leaking exhaust system can allow carbon monoxide to enter the cabin, which is a life-threatening hazard for both the driver and passengers.
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