Air Brake Coach
Brake adjustmentQuestion 57 of 116

What is the minimum lining thickness in the CVSA out-of-service criteria?

  1. 1/16 inch
  2. 1/2 inch
  3. 1/4 inch (7 mm)
  4. 1 inch
Show answer

Correct answer: 1/4 inch (7 mm)

The minimum lining thickness is 1/4 inch (7 mm).

Source: Air Brake Manual: A Guide for Instructors (Government of Alberta, Alberta Transportation, March/April 2012), Module 8: Foundation brakes, page 76

Practice brake adjustment

Questions last reviewed: 18 October 2026