- 0 Incorrect (6 allowed to pass)
- 0 Correct
- Updated for February 2025
- Based on 2025 RI commercial driver's license manual
Free Rhode Island CDL Air Brakes Test 2025
Because most semi-trucks and tractor-trailers rely on air brakes for safe navigation, securing a CDL without an air brake restriction is an absolute priority for anyone wanting to expand their job opportunities. Without passing the Rhode Island DMV CDL Air Brakes Knowledge Test, your CDL will include the restriction “L,” preventing you from operating commercial motor vehicles (CMVs) with air brakes. This restriction closes the door to a multitude of jobs. A one-day waiting period and retest fee (should you decide to take it again) will result if you fail the air brakes test in Rhode Island. Our Rhode Island DMV CDL Air Brakes Practice Tests will help you pass your knowledge exam on the first attempt.
Rhode Island’s diverse terrain, which includes flat coastal areas, hilly inland terrain, congested urban zones (especially in Providence), and narrow roadways, makes precise braking control critical. Key transportation routes, such as I-95 (a major highway connecting Rhode Island to Massachusetts and Connecticut), Route 146 (linking Providence and Worcester), and Routes 4 and 6 (connecting rural-to-urban areas of the state), demand air brake-qualified drivers for safe operation. Without the air brake qualification, drivers face limited access to jobs in commercial trucking and public transit.
The Ocean State relies on drivers with the air brake qualification in key industries, including tourism and hospitality (especially in coastal destinations), manufacturing, agriculture, and seafood. Major companies requiring this qualification include Penske Truck Leasing (Providence), UPS and FedEx in the logistics industry, and Rhode Island Public Transit Authority (RIPTA) and Peter Pan Bus Lines (Providence) in the public transit and charter services. Rhode Island also has thousands of full-size school buses that require air brake-qualified drivers. The “L” restriction makes all of these jobs (and many more!) unattainable.
Based on the state’s CDL manual (Rhode Island CDL Handbook 2025), the written Air Brakes knowledge test features multiple-choice questions and a minimum passing score of 80%. Our CDL Air Brakes Practice Tests cover all essential knowledge for the official DMV Air Brakes Knowledge Test. The material covered will also be useful as you practice inspecting and operating CMVs to pass your skills test. Additionally, our practice tests mimic the official knowledge test and offer real-time feedback on all responses. This immediate display of feedback is scientifically proven to help you learn faster and ensure you pass the test.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual RI DMV exam
questions
correct answers to pass
passing score
List of questions (classic view)
- How would you check your truck's slack adjusters?
- 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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