Free Florida 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 Florida Double/Triple Trailers Practice Test has the same questions as the real exam which is based on the Florida CDL Handbook. 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 Florida CDL practice test an unlimited number of times to make sure you learn all the questions. Let’s try our CDL practice test today and pass your CDL endorsement exam! Good luck and keep driving safely!

Our CDL practice tests:
Based on 2021 FL commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
FL CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What is the purpose of a modulating control valve?
To test the tractor protection valve, the engine needs to be:
You are driving a 100-foot truck with double trailers at 30 mph. The road is dry, and visibility is good. You should keep at least ______ seconds of space ahead of you.
How can you be sure you supplied air to a second trailer?
When driving a truck with more than one trailer, which trailer should be first behind the truck?
In terms of stability, doubles and triples are:
When connecting converter dolly to the front trailer, support gear should be:
The braking power of the spring brakes ______.
When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:
Air tanks need to be drained ______.
How should the air leakage rate be tested?
Automatic air tanks _______.
If your vehicle is not equipped with ABS, when you brake hard on a slippery surface what may occur?
When increased application pressure to maintain the same speed becomes necessary, you should ______.
Why does a heavily-loaded vehicle take longer to stop than a lightly-loaded vehicle?
When you need to apply more pressure to help your brakes work normally effectively, this means that your brakes are fading. Which of the following can cause fading brakes?
A safe speed on a curve for a smaller commercial vehicle:
Why should you never push the brake pedal down when the spring brakes are on?
Water and oil _______.
What affects the stopping distance for air brakes?