Free California CDL Double/Triple Trailers Practice Test 2023

Do you know how to pair double or triple trailers? If you are planning to take the California CDL double/triple trailer endorsement test, make sure to know it! Our California CDL practice test has the same questions as the real exam which is based on the California CDL Handbook. It covers most of the subject areas on the California 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 California 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 CA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CA 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?
What should you do when the low air pressure warning comes on?
When coupling, correct trailer height should:
On large buses low pressure warning devices usually signal at ______.
How often should alcohol containers be checked during cold weather?
On older vehicles, a low air pressure warning signal comes on at what psi?
An air brake is made up of which of the following braking systems?
You are driving a set of doubles and a set of trailer wheels goes into a skid. Which of these is most likely to occur?
Which of these statements about the handling of doubles and triples is true?
If you want to couple a second trailer to your combination vehicle, secure it by using:
A danger of a malfunctioning tractor protection valve is:
When the safety valve releases air this indicates ___________.
If your vehicle is not equipped with ABS, when you brake hard on a slippery surface what may occur?
Typically, air storage tanks hold enough air to allow the brakes to be used _______ even if the compressor stops working.
What is a front brake limiting valve?
Why should you never push the brake pedal down when the spring brakes are on?
You are doing a walk around inspection of a double or triple trailer rig. You should be sure the converter dolly air tank drain valves are _____ and the pintle hook is _________.
When inspecting doubles and triples shut-off valves, which of the following is true?
You can test whether the trailer air system is charged by:
Why is it so crucial to drain your vehicle's air tanks at the end of each day of driving?