This is the seventh of our seven Air Brakes CDL practice tests. Please take all of the practice tests to increase your chance of doing well on the actual test!
Our free Air Brakes CDL practice test contains 10 questions. There is no time limit on the test. You must answer every question.
You’re welcome to retake this test as many times as you’d like. If you want to improve your score or just need more practice, click the ‘Restart Quiz’ button at the end of the test. The questions will be displayed in a different order but they’ll be the same questions you already answered. The second time around you should know the answers!
Feel free to retake this test as many times as you’d like. Once you receive your score there will be a button to View Questions. Wrong answers will be highlighted in red. The correct answer will be in a green box outlined in green.
Being the driver of a commercial vehicle is a huge responsibility. The written CDL test isn’t that bad. The actual driving test is rigorous. Inspectors do not want anyone on the road who isn’t capable of handling a big rig. Make sure you practice your driving and especially BACKING UP.
Congratulations on your decision to become a commercial driver!
Air Brakes CDL Practice Test 7
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Question 1 of 10
When you apply pressure to the brake pedal you are __________.CorrectIncorrect
Question 2 of 10
Brake drums __________.CorrectIncorrect
Question 3 of 10
Which type of brake is the most common in commercial vehicles?CorrectIncorrect
Question 4 of 10
An air pressure gauge __________.CorrectIncorrect
Question 5 of 10
Which of the following is a type of low pressure warning signal?CorrectIncorrect
Question 6 of 10
When the low pressure warning is activated you should __________.CorrectIncorrect
Question 7 of 10
A dual air brake system __________.CorrectIncorrect
Question 8 of 10
An emergency brake __________.CorrectIncorrect
Question 9 of 10
To check the slack adjusters on S-Cam brakes you should __________.CorrectIncorrect
Question 10 of 10
Which of the following should you NOT DO to test the low pressure warning signal?CorrectIncorrect