CDL Air Brakes Practice Test 3
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Question 1 of 10
1. Question
What is the proper technique to use when braking on downgrades?
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Question 2 of 10
2. Question
If your vehicle does not have automatic air tank drains, how often should you drain the tanks?
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Question 3 of 10
3. Question
When is it acceptable to not use parking brakes if you have to leave your vehicle unattended?
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Question 4 of 10
4. Question
When should parking brakes NOT be used?
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Question 5 of 10
5. Question
Which device is designed to protect the air tank and system from too much pressure?
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Question 6 of 10
6. Question
What should you do before driving a vehicle with a dual air system?
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Question 7 of 10
7. Question
If you press and release the brake pedal rapidly, what will happen?
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Question 8 of 10
8. Question
What is another term for a brake pedal?
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Question 9 of 10
9. Question
What is the name of the device that controls when the air compressor will pump air into the air storage tanks?
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Question 10 of 10
10. Question
Which device helps reduce the risk of ice in the air brake systems during cold weather?
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