Illinois IDOT Class B Non CDL Permit Practice Test 2026 – Comprehensive Exam Prep

The recommended method for braking on long downhill grades is to apply the brakes just hard enough to feel a definite slowdown. This technique is effective because it helps maintain control of the vehicle while preventing the brakes from overheating. When descending a long hill, continuously applying the brakes can lead to brake fade, where the brake components become too hot and lose their effectiveness.

Instead, using a methodical approach to brake application allows the driver to manage speed without overstressing the braking system. This technique also provides the driver with the ability to react to changes in road conditions or traffic without the risk of losing control due to overheating brakes. Properly using engine braking in conjunction with this technique can further enhance safety during downhill driving by helping to manage the vehicle’s speed.