Free Michigan CDL Air Brakes Practice Test 2022

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The Michigan 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 Michigan 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 Michigan CDL Practice Test to get ready to pass the Michigan CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2022 MI commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MI CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
The most common type of foundation brakes are:
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.
A low pressure warning signal could be __________.
5.
Total stopping distance for air brakes is longer than that for hydraulic brakes due to ______ distance.
6.
Spring brakes will generally come on at:
7.
With air brake vehicles, the parking brake should be used:
8.
When testing air leakage rates for single vehicles, initial loss rate should be less than:
9.
When you release the brakes and reduce the air pressure what makes up for that air loss?
10.
In most newer vehicles, the parking brake control will be:
11.
When parking a vehicle with a modulating control valve ________.
12.
If the air compressor should develop a leak, what keeps the air in the tanks?
13.
Spring brakes will come on automatically, but the parking brake can also be applied:
14.
The safety valve reduces pressure at ___ psi.
15.
If your truck or bus has dual parking control valves, you can use pressure from a separate tank to:
16.
Total stopping distance with air brakes is Perception distance + Braking Distance + Brake Lag Distance +:
17.
You should avoid using the parking brake when _______.
18.
At what level will the low air warning usually take effect?
19.
Automatic adjusters should ________.
20.
If the air compressor has its own oil supply you should do what before driving?
21.
On newer vehicles, the parking brake control knob is typically yellow, but on older vehicles, the parking brake might be what color?
22.
During a normal drive, the spring brakes are held back by _____.
23.
What is a wig wag ?
24.
To prevent too much pressure from building up in the system, what is installed?
25.
Vehicles with ABS have malfunction lamps that are what color?