- Updated for December 2024
- Based on 2024 NE commercial driver's license manual
Free Nebraska CDL Air Brakes Test 2024
Nebraska is a great state for commercial driving with lots of wide-open roads, and a huge need for products to travel into and out of the state. While there are many truck drivers in the state, you have the opportunity today to study something that can set you apart: air brakes. Passing the air brakes exam and having a CDL without an air brakes restriction means that you are less limited than many other CDL holders in Nebraska. The questions on this practice test are designed to get you comfortable with the format of the real exam, as they are multiple-choice, and the topics you will face, since they are based closely on information straight from the Nebraska Manual for Commercial Driver’s Licensing. Study here, practice here as often as you need to, and good luck on your exam!
- 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 NE DMV exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- If the air tanks are not drained,
- Which of the following will be true about your brake function if your anti-lock braking system (ABS) fails?
- Which of the following can cause brakes to fade or fail?
- Under which conditions are front wheel brakes good?
- Which of the following is NOT part of the air brake system?
- Which of the following should you do before leaving your vehicle unattended?
- After the initial drop, the maximum acceptable leakage rates per minute are
- How would you check your truck's slack adjusters?
- When should you use the parking brake?
- Slack adjusters are
- Which of the following is NOT part of the braking process when driving a tractor-trailer combination vehicle with an anti-lock braking system (ABS)?
- Why must you pass a knowledge test on air brakes?
- What is the best way to test your vehicle's low air pressure warning signal?
- The purpose of a supply pressure gauge is
- The tractor protection valve
- Which of the following is NOT part of the drum brake?
- An anti-lock braking system (ABS)
- When should you drain your air tanks?
- Which vehicles must have low air pressure warning signals?
- How can you tell if your vehicle is equipped with an anti-lock braking system (ABS)?
- Spring brakes are
- How do brakes work on a long, steep downgrade?
- What is the best way to test if your vehicle's spring brakes come on automatically?
- At what measurement is the safety valve USUALLY set to open?
- Which of the following are true about a dual air brake system?
- 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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