Based on 2024 RI commercial driver's license manual
Free Rhode Island CDL Air Brakes Test 2024
If you wish to drive the widest variety of commercial vehicles possible in the state of Rhode Island, you must have an air brakes qualification. This means passing the air brakes section of the Rhode Island CDL exam. Today you will be able to take a practice exam written with questions pulled directly from the RI DMV Commercial Driver License Manual’s section on air brakes. Each of the 30 multiple-choice questions also has a hint in case you get stuck, and an explanation. We recommend reading each explanation, as they provide deeper insight that you may need on the real DMV exam. Good luck on your future exam, practice often, and drive safely!
Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Triple-checked for accuracy
What you need to know
4.67 out of 5 • 3 votes
9 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
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After the initial drop, the maximum acceptable leakage rates per minute are
When should you drain your air tanks?
Which of the following are true about a dual air brake system?
Why must you pass a knowledge test on air brakes?
Which of the following will be true about your brake function if your antilock braking system (ABS) fails?
The purpose of a supply pressure gauge is
How can you tell if your vehicle is equipped with an antilock braking system (ABS)?
Which of the following can cause brakes to fade or fail?
The tractor protection valve
An antilock braking system (ABS)
When should you use the parking brake?
What is the best way to test if your vehicle's spring brakes come on automatically?
Which vehicles must have low air pressure warning signals?
Spring brakes are
How do brakes work on a long, steep downgrade?
Which of the following is NOT part of the braking process when you're driving a tractor-trailer combination vehicle with an antilock braking system (ABS)?
Which of the following is NOT part of the air brake system?
Under which conditions are front wheel brakes good?
If the air tanks are not drained,
Slack adjusters are
Which of the following is NOT part of the drum brake?
At what measurement is the safety valve USUALLY set to open?
What is the best way to test your vehicle's low air pressure warning signal?
Which of the following should you do before leaving your vehicle unattended?
The low air pressure warning signal will come on before the pressure in the air tanks falls below
A low pressure warning signal is required on
All vehicles equipped with air brakes have
With air brake-equipped vehicles, the parking brakes should be used
The use of air brakes on a downgrade is only a supplement to the
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Written by Andrei ZakhareuskiUpdated over a week ago
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Alignment with Official Manuals: Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
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