Ontario MTO Truck Knowledge Practice Test

Question: 1 / 400

Compared to a four-wheel vehicle, how much space does an 18-wheeler need to stop?

Half as much

Twice as much

An 18-wheeler requires significantly more space to come to a complete stop compared to a four-wheeled vehicle. This difference in stopping distance is primarily due to the size, weight, and momentum of the truck. An 18-wheeler can weigh up to 80,000 pounds, while a typical car weighs considerably less.

The greater mass means that it takes longer for the brakes to decelerate the vehicle, requiring more distance in which to achieve a complete stop. Additionally, the larger tires and longer braking systems of a truck contribute to a longer stopping distance, especially under conditions such as wet or slippery roads.

Understanding these factors is crucial for maintaining safe distances when driving near large trucks to prevent collisions and enhance road safety.

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The same amount

Three times as much

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