New York CDL — Air Brakes Practice Test
The New York CDL — Air Brakes knowledge test has ~25 questions; you need ~20 correct (80%) to pass.
Or take one of 10 full-length practice tests
25 questions · pass with 20 correct. You get instant feedback and an explanation after every answer.
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The full-length test, with feedback and an explanation after every answer.
New York CDL — Air Brakes practice tests
10 full-length practice tests, each with 25 questions and a pass mark of 20, like the real test. You see the answers and explanations after you grade.
- Test 1
25 questions · pass with 20
If you are on a downgrade and notice you need increasing application gauge pressure to hold the same speed, what should you conclude?
- Test 2
25 questions · pass with 20
The safety relief valve on an air tank is normally set to open at about 150 psi. If this valve ever releases air, what does that tell you?
- Test 3
25 questions · pass with 20
To pass inspection, the low air pressure warning device must activate before system pressure falls below what value?
- Test 4
25 questions · pass with 20
When checking the rate of air pressure buildup on a vehicle with a dual air system, pressure should rise from 85 to 100 psi within what time?
- Test 5
25 questions · pass with 20
How is the stop light switch on an air-braked vehicle activated when you brake?
- Test 6
25 questions · pass with 20
A dual air brake system has a "primary" and a "secondary" system that share one set of controls. Which brakes does the primary system usually work?
- Test 7
25 questions · pass with 20
If you are on a downgrade and notice you need increasing application gauge pressure to hold the same speed, what should you conclude?
- Test 8
25 questions · pass with 20
The safety relief valve on an air tank is normally set to open at about 150 psi. If this valve ever releases air, what does that tell you?
- Test 9
25 questions · pass with 20
If the air compressor quits working while you are on the road, what do the air storage tanks still let you do?
- Test 10
25 questions · pass with 20
As air is used and tank pressure drops, at approximately what pressure does the governor signal the compressor to begin pumping again?