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Colorado Class R Knowledge Practice Test
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Passing target: 80% (24/30)
Vehicle Safety, Documents & TowingStandalone practice
What exhaust condition is unsafe and unlawful?
Correct answer: A leaky exhaust that lets in fumes or makes excess noise.
Why
The muffler and exhaust must control noise and prevent harmful gas from leaking into the vehicle.
Verified against Colorado Driver Handbook · Exhaust system condition · p. 9
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