CDL Air Brakes Practice Test 2
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Question 1 of 10
1. Question
What is the primary purpose of a front brake limiting valve?
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Question 2 of 10
2. Question
Which of the following will affect the stopping power of spring brakes?
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Question 3 of 10
3. Question
A dual air brake system has which of the following features?
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Question 4 of 10
4. Question
Where are foundation brakes used?
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Question 5 of 10
5. Question
Which of the following parts of the air brake systems should be checked during the pre-trip walk around inspection?
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Question 6 of 10
6. Question
During inspection, if a slack adjuster moves less than about one inch where the push rod attaches to it, which of the following statements is true?
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Question 7 of 10
7. Question
When testing the air leakage rate (by turning off the engine and releasing the parking brake), what is an acceptable air loss rate?
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Question 8 of 10
8. Question
Which of the following is not a step in testing that the spring brakes come on automatically?
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Question 9 of 10
9. Question
If you use controlled braking, which of the following is an acceptable procedure?
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Question 10 of 10
10. Question
What should you do if the low air pressure warning light comes on?
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