What is the proper technique to use when braking on downgrades?
Subject: Commercial Driver License Multiple Choice Quiz ( MCQ ) and Answer
If your vehicle does not have automatic air tank drains, how often should you drain the tanks?
When is it acceptable to not use parking brakes if you have to leave your vehicle unattended?
When should parking brakes NOT be used?
Which device is designed to protect the air tank and system from too much pressure?
What should you do before driving a vehicle with a dual air system?
If you press and release the brake pedal rapidly, what will happen?
What is another term for a brake pedal?
What is the name of the device that controls when the air compressor will pump air into the air storage tanks?
Which device helps reduce the risk of ice in the air brake systems during cold weather?
Which of the following steps should you use to check the slack adjusters on S Cam brakes?
What is the typical air pressure of a fully charged air brake system?
What is the proper way to test the air leakage rate?
What is stab braking?
Why do air brakes take longer to stop than hydraulic brakes?
What will happen if your air compressor stops?
How should you check your air compressor governor “cut in” and “cut out” pressures?
How fast should the air pressure build in a dual air system?
What are the typical air compressor governor cut-in and cut-out pressures?
What device will keep air in the tanks if the air compressor develops a leak?
Which of the following devices indicates how much pressure you have in your air tanks?
Which of the following statements regarding spring brakes is true?