Free Connecticut 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 Connecticut CDL Practice test has the same questions as the real exam which is based on the CT 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 Connecticut 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 CT commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CT CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What is the "cut-in" pressure for most air compressor governors?
Which is true when checking air flow to all trailers?
What is the purpose of a front-brake limiting valve?
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
When driving a truck with more than one trailer, which trailer should be first behind the truck?
The air compressor governor stops air from pumping when it reaches the "cut-out" level or around generally _________.
If air supply drops when driving, the tractor protection valve ________.
How can you be sure you supplied air to a second trailer?
How do air-operated disc brakes work?
The most efficient way to drive down a long grade is to ________.
On large buses low pressure warning devices usually signal at ______.
Automatic air tanks _______.
An air compressor can be cooled by _______.
If you want to couple a second trailer to your combination vehicle, secure it by using:
During a normal drive, the spring brakes are held back by _____.
Why should you check the brake adjustment often?
Why does a heavily-loaded vehicle take longer to stop than a lightly-loaded vehicle?
If you have manual transmission _________.
In dual-air systems the pressure should build to _______.
Vehicles with air brakes have pressure gauges connected to the _______.