Air Brake Coach
System partsQuestion 11 of 116

How many full service brake applications must the tank volume of a trailer supply?

  1. 8
  2. 2
  3. 12
  4. 16
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Correct answer: 8

Tank volume must supply at least 8 full service applications for trailers.

Source: Air Brake Manual: A Guide for Instructors (Government of Alberta, Alberta Transportation, March/April 2012), Module 4: Service circuits, page 47

Practice system parts

Questions last reviewed: 18 October 2026