Practice question

A truck takes 75 seconds to build from 85 to 100 psi at governed rpm. What should the driver conclude?

  1. The buildup rate is too slow and the air system needs repair
  2. The buildup rate is always acceptable above 60 seconds
  3. The low-air warning is automatically fixed
  4. The parking brake test is unnecessary

Answer: A — The buildup rate is too slow and the air system needs repair

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