Air Brake Coach
Driving with air brakesQuestion 92 of 116

When does brake failure from heat occur?

  1. When the tanks are full
  2. When the lining is new
  3. When the governor cuts out
  4. When the drums take in more heat than they can release
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Correct answer: When the drums take in more heat than they can release

Driving too fast for the conditions causes this.

Source: Air Brake Manual: A Guide for Instructors (Government of Alberta, Alberta Transportation, March/April 2012), Module 1: Braking fundamentals, page 31

Practice driving with air brakes

Questions last reviewed: 18 October 2026