Free Kentucky CDL Double/Triple Trailers Practice Test 2023

Do you know how to pair double or triple trailers? If you are planning to take the Kentucky CDL double/triple trailer endorsement test, make sure to know it! Our Kentucky CDL Practice Test has the same questions as the real exam which is based on the KY 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 Kentucky 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 KY commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
KY CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What is the function of a stop light switch?
When coupling, correct trailer height should:
A low pressure warning signal could be __________.
With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the trailer. When you do this, you should hear:
Automatic adjusters should ________.
To check if the converter dolly is securely coupled to the rear trailer you should:
The air compressor should pump air starting at what psi?
The service brake system ________.
On newer vehicles, the parking brake control knob is typically yellow, but on older vehicles, the parking brake might be what color?
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 _____.
What is a front brake limiting valve?
If you have manual transmission _________.
Why do some air brake systems have an alcohol evaporator?
When performing the controlled braking method for an emergency stop, you are _________.
If the malfunction lamp stays on after the bulb check, __________.
Why is it so crucial to drain your vehicle's air tanks at the end of each day of driving?
The last step to uncouple a converter dolly is:
The pintle hook should never be unlocked when:
When uncoupling the rear trailer, which of these should be done first?