Practice question

What are standard operating pressure ranges for air compressor cut-in and cut-out in heavy vehicle air brake systems?

  1. Cut-in at 40 psi and cut-out at 60 psi
  2. Cut-in around 100 psi and cut-out around 120 to 125 psi
  3. Cut-in at 150 psi and cut-out at 250 psi
  4. Cut-in at 10 psi and cut-out at 30 psi

Answer: B — Cut-in around 100 psi and cut-out around 120 to 125 psi

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