CDL · Vehicle inspection
What problem can let toxic carbon monoxide gas get into the cab?
Correct answer: A leaking exhaust system.
Answer options
- AToo little coolant in the radiator
- BA leaking exhaust system Correct
- CToo little engine oil
Why
Carbon monoxide is part of engine exhaust, so broken, loose or leaking exhaust parts can let it seep into the cab, where it can cause drowsiness or even death. Low oil or coolant can damage the engine but does not send exhaust gas into the cab.
About this question
Topic: Vehicle inspection License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Inspecting Your Vehicle (32 questions). Take the full set and check your score.
Practice Inspecting Your VehicleMore questions from Inspecting Your Vehicle
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