Alberta Class 7 License Practice Test

Which of the following actions should be taken to avoid brake overheating while driving downhill?

1. Excessive use of brakes

2. Coasting down the hill

3. Using engine braking by changing to a lower gear

4. Keeping the transmission in neutral

The correct answer is: Using engine braking by changing to a lower gear

Using engine braking by changing to a lower gear is the most effective action to avoid brake overheating while driving downhill. When you shift to a lower gear, the engine helps to slow the vehicle down by providing resistance, which reduces the reliance on the brake system. This method effectively decreases the speed of the vehicle without generating excessive heat in the brakes, which can occur when brakes are frequently applied. In contrast, excessive use of brakes can lead to overheating due to the constant friction they generate, while coasting down the hill may result in a lack of control over the vehicle and could increase the speed without proper braking. Additionally, keeping the transmission in neutral can be dangerous, as it removes engine control, making it harder to slow down and potentially leading to a loss of vehicle control. Therefore, using engine braking is the safest and most efficient method to maintain control and prevent brake failure from overheating.