Free Hawaii CDL Air Brakes Practice Test 2023

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 2021 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
During normal driving, spring brakes are usually held back by:
A dual air brake system ________.
The application pressure gauge shows how much air pressure you:
To make sure that the spring brakes come on automatically, do all of the following except:
When performing the controlled braking method for an emergency stop, you are _________.
What type of brakes pushes a wedge between the ends of two brake shoes to stop the vehicle?
If the low air warning comes on while you are driving, you should:
If your truck or bus has dual parking control valves, you can use pressure from a separate tank to:
All of the following are factors in total stopping distance except:
Total stopping distance with air brakes is Perception distance + Braking Distance + Brake Lag Distance +:
After the initial pressure drop, air leakage for combination vehicles should be less than:
In a dual air brake system, the first system, supplying the rear brakes, is commonly known as the "primary" system, and the other as the:
Under normal braking conditions, the vehicle:
In case of air pressure loss, a mechanical means of preventing the vehicle from moving is called:
With air brake vehicles, the parking brakes should be used:
All of the following apply if the low air pressure warning signal does not work except:
In dual air systems, how long should it take air pressure to build 85 to 100 psi?
At minimum, a dual air system should build up to what psi in the primary and secondary systems?
How does the antilock brake system benefit the driver?
Stop light switches are necessary because ________.
If the air compressor has its own oil supply you should do what before driving?
The safety valve in the air compressor tank is set to open at _____.
What is used to put alcohol into the system and reduce ice risk?
A warning to drivers behind you that the air brakes have been applied is the:
What is the purpose of an air storage tank?