Air Brake Coach
Driving with air brakesQuestion 98 of 116

What can auxiliary retarders NOT do?

  1. Give extra braking control
  2. Help on a downgrade
  3. Slow the driveline
  4. Meet sudden or large braking demands
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Correct answer: Meet sudden or large braking demands

Retarders give extra control. They do not replace the service brakes.

Source: Air Brake Manual: A Guide for Instructors (Government of Alberta, Alberta Transportation, March/April 2012), Module 9: Driving tips, page 89

Practice driving with air brakes

Questions last reviewed: 18 October 2026