Free Indiana CDL Double/Triple Trailers Practice Test 2023

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 Indiana CDL Practice Test has the same questions as the real exam which is based on the Indiana 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 Indiana 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 IN commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
IN CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What should you do when the low air pressure warning comes on?
What is the function of a stop light switch?
The air compressor governor stops air from pumping when it reaches the "cut-out" level or around generally _________.
How do air-operated disc brakes work?
To check if the converter dolly is securely coupled to the rear trailer you should:
When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:
If the dolly has spring brakes, release them with:
Air tanks need to be drained ______.
How should the air leakage rate be tested?
Before you can supply air to the air tanks of a second trailer you need to:
What distinguishes a wedge brake from other types of brakes?
When driving doubles or triples, for safer handling which trailer should be at the rear?
When checking that air is flowing to all trailers, what is used to provide air to the supply lines?
Which of the following is the most common reason brakes fade?
Why should you never leave your vehicle unattended without applying the parking brakes?
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
It's important that a warning signal comes on before the air pressure in the tank falls below _______.
When performing the controlled braking method for an emergency stop, you are _________.
Drivers of doubles and triples must take into greater account:
The pintle hook should never be unlocked when: