Free Alabama CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the CDL double/triple trailer endorsement test, make sure to know it! Our Alabama CDL practice test has the same questions as the real exam which is based on the Alabama CDL manual. It covers most of the subject areas on the Double/Triple Trailers Test such as pulling double and triple trailers, the risk of rollover, managing space, and special considerations when hauling multiple trailers. In addition, each question has a detailed explanation that will help you understand the concept and answer future questions about it correctly. If you don't get the pass right away, you can take this CDL practice test an unlimited number of times to make sure you learn all the questions. Let’s try our Free Alabama CDL Double/Triple Trailers Practice Test today and pass your CDL exam! Good luck and keep driving safely!

Our CDL practice tests:
Based on 2022 AL commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
AL CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Which is true when checking air flow to all trailers?
2.
What is proper braking technique for drivers travelling down a hill or any other downgrade?
3.
On large buses low pressure warning devices usually signal at ______.
4.
Automatic adjusters should ________.
5.
To check if the converter dolly is securely coupled to the rear trailer you should:
6.
You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when:
7.
You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks you should:
8.
When coupling or uncoupling, trailer or dolly wheel should always be:
9.
The service brake system ________.
10.
During normal operation, the brakes of the double/triple trailer are controlled by:
11.
How do you check the low pressure warning signal?
12.
A safety valve that releases air _______.
13.
When inspecting the shut-off valves on doubles and triples, all of the following is true except:
14.
What distinguishes a wedge brake from other types of brakes?
15.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
16.
If the air compressor does not have its own oil supply, how is it lubricated?
17.
A safe speed on a curve for a smaller commercial vehicle:
18.
Which of the following factors explains why the total stopping distance for air brakes is longer than that for hydraulic brakes?
19.
Why is it so crucial to drain your vehicle's air tanks at the end of each day of driving?
20.
The pintle hook should never be unlocked when: