CDL Air Brakes Practice Test 4
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Question 1 of 10
1. Question
Which device allows you to remove oil and water from the air brake systems?
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Question 2 of 10
2. Question
What does it mean when the safety valve opens and releases air?
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Question 3 of 10
3. Question
What should the air pressure loss be in a single vehicle with a fully charged air system?
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Question 4 of 10
4. Question
In a combination vehicle, what should the air pressure loss be with a fully charged air system?
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Question 5 of 10
5. Question
Where is compressed air stored?
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Question 6 of 10
6. Question
Which of the following devices indicates how much air pressure you are applying to your brakes?
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Question 7 of 10
7. Question
Which of the following devices can be used as the low air pressure warning signal?
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Question 8 of 10
8. Question
What is a wig-wag?
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Question 9 of 10
9. Question
What is a modulating control valve?
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Question 10 of 10
10. Question
What does the Air Compressor Governor control?
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