What is stab braking?
  • Applying your brakes until the wheels lock up, releasing, and then reapplying when the wheels start rolling
How should you check your air compressor governor “cut in” and “cut out” pressures?
  • Run the engine at a fast idle
  • Step on and off the brake to reduce tank pressure
  • Monitor the air pressure gauge
Which of the following statements is true regarding front wheel braking?
  • Front wheel braking is good under all conditions
What are the three types of brake systems used in a commercial vehicle air brake system?
  • Service brake, parking brake, emergency brake
What does it mean when the safety valve opens and releases air?
  • The pressure has exceeded 150 psi
  • Something is wrong, and a mechanic needs to check it
What should the air pressure loss be in a single vehicle with a fully charged air system?
  • Less than 2 psi per minute
In a combination vehicle, what should the air pressure loss be with a fully charged air system?
  • Less than 3 psi per minute