Manitoba Airbrake Practice Exam

When descending steep hills, using a combination of engine braking and intermittent application of service brakes is the recommended method. Engine braking helps to reduce the speed of the vehicle without overheating the service brakes by using the engine’s compression to slow down the vehicle. This method conserves the lifespan of the brake system.

Intermittent application of the service brakes allows the driver to maintain control while also letting the brakes cool between applications. This is crucial because constant use of the service brakes can lead to fading, a condition where the brakes lose effectiveness due to overheating.

This balanced approach is important for safety and efficiency when navigating steep descents, providing better control and helping avoid potential incidents associated with brake failure. Other braking methods, such as relying solely on engine braking or continuous application of service brakes, can lead to reduced control and increased wear on the braking system, making them less effective in steep conditions.