Practice question

In an s-cam drum brake, what does the slack adjuster help do?

  1. Rotate the s-cam and provide a means to compensate for brake wear
  2. Store compressed air for the steering axle
  3. Vent air from the compressor discharge line
  4. Control the ABS warning lamp

Answer: A — Rotate the s-cam and provide a means to compensate for brake wear

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: BC Air Brake Knowledge Test Practice Questions - British Columbia ICBC Air Brake Knowledge Test Exam →