Free Louisiana CDL Double/Triple Trailers Practice Test 2023

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 2021 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
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
What is proper braking technique for drivers travelling down a hill or any other downgrade?
How can you be sure you supplied air to a second trailer?
The converter dolly air tank drain valve on coupled double/triple trailers should be:
On large buses low pressure warning devices usually signal at ______.
The braking power of the spring brakes ______.
The increased likelihood of doubles and triples turning over is called:
A front brake limiting valve ______.
How do you check the low pressure warning signal?
A safety valve that releases air _______.
When inspecting the shut-off valves on doubles and triples, all of the following is true except:
An air compressor can be cooled by _______.
Why should you check the brake adjustment often?
Where is compressed air stored?
Wedge brakes and disc brakes are ______ than s-cam brakes.
You are doing a walk around inspection of a double or triple trailer rig. You should be sure the converter dolly air tank drain valves are _____ and the pintle hook is _________.
In dual-air systems the pressure should build to _______.
If the malfunction lamp stays on after the bulb check, __________.
The pintle hook should never be unlocked when:
A visual inspection after coupling should show that: