Nunavut Knowledge Test Coach
Safe drivingQuestion 90 of 125

What danger does a leaking exhaust cause in winter?

  1. Lower fuel use
  2. Carbon monoxide gas, which has no smell
  3. A louder horn
  4. Frost on the windows
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Correct answer: Carbon monoxide gas, which has no smell

Carbon monoxide has no odour and can kill. Ventilate the car. Never run an engine in a closed garage.

Source: Nunavut Driver's Manual (Government of Nunavut, Motor Vehicles Division), Winter Driving, page 53

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Questions last reviewed: 18 October 2026