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Wyoming Class C Knowledge Test Practice
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Weather, Visibility & EmergenciesStandalone practice
Your car is stuck in a snowdrift during a blizzard, and you run the engine for heat. What should you do to protect against carbon monoxide?
Correct answer: Run it only at times, with a window open slightly and the exhaust pipe clear.
Why
If a blizzard strands you, stay with the car so that rescuers can find you. Carbon monoxide is a colorless, odorless poison, and a blocked exhaust pipe can push it into the car. Run the engine and heater only at times, keep a window open a little, and check that snow has not covered the exhaust pipe. Take turns keeping watch, and use your flashers, plus the dome light at night, so that road crews can see you.
Verified against Wyoming Rules of the Road, Class C · Blizzards · p. 80, 84
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