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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
Study now
List of questions
1.
What is the function of a stop light switch?
2.
Automatic slack adjusters ________.
3.
An application pressure gauge shows how much air you are applying to the brakes. Increased application pressure to maintain the same speed indicates that __________.
4.
When coupling or uncoupling, trailer or dolly wheel should always be:
5.
The air compressor should pump air starting at what psi?
6.
How do you check the low pressure warning signal?
7.
The service brake system ________.
8.
You are visually checking the coupling of a converter dolly to the rear trailer. How much space should be between the upper and lower fifth wheel?
9.
Before you can supply air to the air tanks of a second trailer you need to:
10.
After coupling the converter dolly to the first trailer, the pintle hook should be:
11.
Vehicles without automatic air tank drains need to be checked manually to remove ________?
12.
When driving doubles or triples, for safer handling which trailer should be at the rear?
13.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
14.
When checking that air is flowing to all trailers, what is used to provide air to the supply lines?
15.
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
16.
What is a front brake limiting valve?
17.
A safe speed on a curve for a smaller commercial vehicle:
18.
If your vehicle has an alcohol evaporator, the evaporator's purpose is to _____.
19.
Why should you drain water from compressed air tanks?
20.
Why is it so crucial to drain your vehicle's air tanks at the end of each day of driving?
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