Practice question

During New Jersey CDL air-brake preparation, what is the role of the slack adjuster on an S-cam brake?

  1. It cushions the impact of hard braking
  2. It transfers force from the pushrod to the S-cam and can be adjusted to compensate for lining wear
  3. It bleeds water from the system
  4. It limits maximum air pressure

Answer: B — It transfers force from the pushrod to the S-cam and can be adjusted to compensate for lining wear

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