Ontario MTO Truck Knowledge Practice Test

The maximum allowable height for a vehicle is?

1. A) 3.5 m

2. B) 4.15 m

3. C) 5.0 m

4. D) 6.75 m

The correct answer is: B) 4.15 m

The maximum allowable height for a vehicle is 4.15 m. This height limit is established to ensure the safe passage of vehicles under overpasses, bridges, and specific structures on roads. By keeping vehicles within this height, it reduces the risk of collisions with overhead structures, which could cause significant damage to both the vehicle and the infrastructure. Other height limits, such as those higher than 4.15 m, are generally applicable to specialized vehicles or specific conditions that require special permits. However, for standard vehicles, particularly in the context of the Ontario MTO regulations, adhering to the 4.15 m limit ensures compliance with road safety standards and helps facilitate the smooth operation of all types of traffic on the roadways.