Air Brake Coach
InspectionQuestion 79 of 116

How long do you hold a full service brake application in the air leak check?

  1. 10 seconds
  2. 2 minutes
  3. 30 seconds
  4. 10 minutes
Show answer

Correct answer: 2 minutes

The form says to apply and firmly hold a full service brake application for 2 minutes.

Source: Air Brake Manual: A Guide for Instructors (Government of Alberta, Alberta Transportation, March/April 2012), Air Brake Practical Test (DPLS0003): Air system leaks, page 123

Practice inspection

Questions last reviewed: 18 October 2026