Free Hawaii CDL Air Brakes Practice Test 2022

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The Hawaii CDL Air Brake Test has some differences from other endorsements because your license will receive a mark of restriction if you fail the test. So having good preparation before exam day is very necessary. To ensure that our Hawaii CDL practice test questions are relevant, all of our practice questions are based on the Hawaii CDL manual. Each question has a detailed explanation for you to thoroughly learn the format and the topic. Don't be afraid of having a restriction on your license. Let’s try with our CDL practice test to get ready to pass the Hawaii CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2022 HI commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
HI CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
A low air pressure warning signal is ________.
2.
The most important thing to do when a low air pressure warning comes on is:
3.
The 3 individual systems of the air brakes are the service brakes, emergency brake, and:
4.
The supply pressure gauge shows how much pressure:
5.
Generally, air governor cut-in should be at:
6.
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
7.
When the mechanical arm of a wig wag drops into your view that means the pressure in your system has dropped below what psi?
8.
What is the purpose of an antilock braking system (ABS)?
9.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
10.
"Some air brake systems have an alcohol evaporator. What may happen if you don’t keep the proper level of alcohol?"
11.
How should you check that your service brakes are working properly?
12.
If air pressure is not built up within the correct amount of time, then:
13.
In case of emergency stops, drivers should:
14.
Compared to hydraulic brakes, air brakes add how much distance to an average 55 mph stop?
15.
The service brake system ________.
16.
At what level will the low air warning usually take effect?
17.
If one air system is very low on pressure _______.
18.
The air compressor is connected to the engine through ______.
19.
When driving an older vehicle that has a manual front brake limiting valve, drivers should:
20.
Automatic adjusters should ________.
21.
Stab braking should only be used:
22.
How often should alcohol containers be checked during cold weather?
23.
Spring brakes are applied:
24.
To check the air compressor governor's "cut in" and "cut out" pressures you need to _________.
25.
Typically, at what psi does the air compressor governor stop the compressor from pumping air?