CDL Air Brakes Practice Test 1
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Question 1 of 10
1. Question
What type of air do air brakes use?
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Question 2 of 10
2. Question
What are the three types of brake systems used in a commercial vehicle air brake system?
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Question 3 of 10
3. Question
What is the name of the device that pumps air into the air storage tanks?
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Question 4 of 10
4. Question
What is the alcohol evaporator’s primary purpose?
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Question 5 of 10
5. Question
What psi level is the safety relief valve set to open at?
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Question 6 of 10
6. Question
Which of the following is the most common type of foundation brake?
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Question 7 of 10
7. Question
Which of the following statements is true regarding front wheel braking?
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Question 8 of 10
8. Question
At what air pressure must the low air pressure warning signal come on?
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Question 9 of 10
9. Question
Which of the following statements regarding spring brakes is true?
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Question 10 of 10
10. Question
Which of the following devices indicates how much pressure you have in your air tanks?
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