Practice question

What is inertial (pressure) braking of a trailer?

  1. Braking that uses compressed air from a second, independent source
  2. Braking by utilising the forces generated by the trailer closing up on the tractor
  3. Braking applied only after the combination has already stopped
  4. Braking of the tractor only, leaving the trailer free

Answer: B — Braking by utilising the forces generated by the trailer closing up on the tractor

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