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.
The part of the combination vehicle most likely to turn over is the:
2.
What is the purpose of a modulating control valve?
3.
What is the "cut-in" pressure for most air compressor governors?
4.
What is a modulating control valve?
5.
Air brakes take longer to stop than hydraulic brakes because _______.
6.
A low pressure warning signal could be __________.
7.
Brake linings should not be _______.
8.
If the dolly has spring brakes, release them with:
9.
When driving doubles or triples in adverse or slippery weather conditions, all of the following are true except:
10.
What is likely to happen if the pintle hook is unlocked with the dolly still under the second trailer?
11.
Before you can supply air to the air tanks of a second trailer you need to:
12.
If you want to couple a second trailer to your combination vehicle, secure it by using:
13.
Pushing the brake pedal down when the spring brakes are on could _________.
14.
If your vehicle is not equipped with ABS, when you brake hard on a slippery surface what may occur?
15.
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
16.
When you make an emergency stop, you should _________.
17.
Why should you drain water from compressed air tanks?
18.
Vehicles with air brakes have pressure gauges connected to the _______.
19.
Why is it so crucial to drain your vehicle's air tanks at the end of each day of driving?
20.
You can test whether the trailer air system is charged by: