Air Brake Coach
Spring brakesQuestion 25 of 116

You must cage all the park brakes. What must you do first?

  1. Drain all the air tanks
  2. Disconnect the battery
  3. Put chock blocks on both sides of the wheels
  4. Pull the red button
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Correct answer: Put chock blocks on both sides of the wheels

Caged brakes no longer hold the vehicle. Chock blocks on both sides of the wheels stop it from moving.

Source: Air Brake Manual: A Guide for Instructors (Government of Alberta, Alberta Transportation, March/April 2012), Module 5: Park circuit, page 58

Practice spring brakes

Questions last reviewed: 18 October 2026