Free Louisiana CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Louisiana CDL double/triple trailer endorsement test, make sure to know it! Our Louisiana CDL Practice Test has the same questions as the real exam which is based on the Louisiana CDL Book. 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 Louisiana CDL Double/Triple Trailers Practice Test today and pass your CDL endorsement exam! Good luck and keep driving safely!

Our CDL practice tests:
Based on 2022 LA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
LA CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
What is the function of a stop light switch?
2.
In terms of stability, doubles and triples are:
3.
To check if the converter dolly is securely coupled to the rear trailer you should:
4.
With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the trailer. When you do this, you should hear:
5.
When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:
6.
You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks you should:
7.
When coupling or uncoupling, trailer or dolly wheel should always be:
8.
At 55 mph on dry pavement, the air brake lag distance is how many feet?
9.
Air tanks need to be drained ______.
10.
How should the air leakage rate be tested?
11.
What distinguishes a wedge brake from other types of brakes?
12.
Vehicles without automatic air tank drains need to be checked manually to remove ________?
13.
Which of the following is the most common reason brakes fade?
14.
Why should you never leave your vehicle unattended without applying the parking brakes?
15.
When testing the trailer emergency brakes, charge the system, pull out the trailer air supply control, and:
16.
When you need to apply more pressure to help your brakes work normally effectively, this means that your brakes are fading. Which of the following can cause fading brakes?
17.
Why should air tanks be drained completely?
18.
A safe speed on a curve for a smaller commercial vehicle:
19.
It's important that a warning signal comes on before the air pressure in the tank falls below _______.
20.
The last step to uncouple a converter dolly is: