Ontario MTO Truck Knowledge Practice Test

Which of the following can cause difficulty with your vehicle's clearance?

1. Gravel

2. Sand

3. Ice

4. Concrete

The correct answer is: Ice

The presence of ice can significantly impact a vehicle's clearance because it can accumulate under the vehicle and raise its height, potentially leading to clearance issues when navigating over obstacles or into areas with limited overhead space. In addition, ice can make surfaces slippery, affecting the vehicle's stability and control, which may further complicate managing clearance effectively. Gravel, while it can pose its own challenges, typically does not cause an increase in a vehicle's height nor does it have the same effect on clearance as ice does. Sand can create similar scenarios to gravel but again does not raise the vehicle's clearance in the way ice can. Concrete provides a stable and firm surface for driving and does not typically interfere with a vehicle’s height or clearance as ice does.