# Free Rhode Island CDL Air Brakes Practice Test 2023

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

Our CDL practice tests:
Based on 2021 RI commercial driver's license manual
Perfect for first-time, renewal applicants
RI CDL Air Brakes Test format:
25 questions
80% passing score
List of questions
1.
The air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than:
2.
The reduced stopping power caused by overuse of the service brakes and excessive heat is called:
3.
Your truck or bus has a dual air brake system. If a low air pressure warning comes on for only one system, what should you do?
4.
Emergency stab braking is:
5.
Under normal conditions, in order to engage the parking brakes the driver should:
6.
Why drain water from compressed air tanks?
7.
On a long or steep downgrade, the foot brakes should be used:
8.
When the air system is low ________.
9.
What negatively affects the braking power of a spring brake?
10.
When should the spring brakes activate?
11.
12.
If the low air warning comes on while you are driving, you should:
13.
When brakes are applied, the brake shoes will press against the:
14.
All of the following are factors in total stopping distance except:
15.
16.
The S-cam:
17.
In case of air pressure loss, a mechanical means of preventing the vehicle from moving is called:
18.
At what level will the low air warning usually take effect?
19.
Pushing the brake pedal down harder __________.
20.
The service brake system ________.
21.
In dual air systems, how long should it take air pressure to build 85 to 100 psi?
22.
Which of the following helps the stop light switch work?
23.
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
24.
Brake linings should not be _______.
25.
Vehicles without automatic air tank drains need to be checked manually to remove ________?