Yukon Knowledge Test Coach
Safe drivingQuestion 164 of 215

How does cannabis affect a driver?

  1. It slows reaction time and decisions.
  2. It sharpens reaction time.
  3. It helps the driver split attention.
  4. It has no effect on decisions.
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Correct answer: It slows reaction time and decisions.

Cannabis slows your reactions and your decisions. It also makes it harder to watch several things at once. You need these skills on the road.

Source: Yukon Driver's Basic Handbook: Cars and Light Trucks (Government of Yukon, © 2022), Chapter 7, Drug impaired driving, page 101

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Questions last reviewed: 18 October 2026