Free Pennsylvania CDL Air Brakes Practice Test 2022

Do you need a Pennsylvania Air Brakes endorsement or an L endorsement for your commercial driving license? The Pennsylvania 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 questions are relevant, all of our CDL practice test packs are based on the PA 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 our Pennsylvania CDL Practice Test to get ready to pass the Pennsylvania CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2022 PA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
PA CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
An automatic wig wag will rise out of your view when the pressure in your system rises above what psi?
2.
The air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than:
3.
The stop light switch:
4.
Air tanks need to be drained ______.
5.
Parking or emergency brakes of trucks and buses can be legally held on by ____ pressure.
6.
Under normal conditions, in order to engage the parking brakes the driver should:
7.
In case of a low air situation, the spring brakes should come on at:
8.
Emergency stab braking is:
9.
A mechanical device that drops a low air warning into a drivers view is called a:
10.
Where is the modulating control valve located on some vehicles?
11.
The type of brakes that clamp the rotor between the brake shoes is:
12.
When performing the controlled braking method for an emergency stop, you are _________.
13.
Another name for the brake pedal is the "foot valve", or:
14.
When you need to depress the brakes harder and harder just to maintain the same speed this means ______.
15.
Besides heat, another cause of brake fade is:
16.
Which of these is NOT a proper time to apply the parking brakes?
17.
At what level will the low air warning usually take effect?
18.
The braking power of the spring brakes ______.
19.
How does the antilock brake system benefit the driver?
20.
Initial air leakage rate for combination vehicles should be:
21.
On large buses low pressure warning devices usually signal at ______.
22.
Spring brakes are applied:
23.
Typically, at what psi does the air compressor governor stop the compressor from pumping air?
24.
What does ABS stand for?
25.
What is the purpose of an air storage tank?