Free Mississippi CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Mississippi CDL double/triple trailer endorsement test, make sure to know it! Our Mississippi CDL Practice Test has the same questions as the real exam which is based on the Mississippi 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 Mississippi 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 2022 MS commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MS CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
What is the purpose of an antilock braking system (ABS)?
2.
Which is true when checking air flow to all trailers?
3.
What is the function of a stop light switch?
4.
Air brakes take longer to stop than hydraulic brakes because _______.
5.
On older vehicles, a low air pressure warning signal comes on at what psi?
6.
Brake linings should not be _______.
7.
Which of these statements about the handling of doubles and triples is true?
8.
If the dolly has spring brakes, release them with:
9.
What is likely to happen if the pintle hook is unlocked with the dolly still under the second trailer?
10.
You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should:
11.
The tractor protection valve should pop out when air pressure falls to:
12.
A danger of a malfunctioning tractor protection valve is:
13.
Vehicles without automatic air tank drains need to be checked manually to remove ________?
14.
When testing the trailer emergency brakes, charge the system, pull out the trailer air supply control, and:
15.
Why should you never leave your vehicle unattended without applying the parking brakes?
16.
Which of the following is the most common reason brakes fade?
17.
If you have manual transmission _________.
18.
A safe speed on a curve for a smaller commercial vehicle:
19.
You can test whether the trailer air system is charged by:
20.
When the mechanical arm of a wig wag drops into your view that means the pressure in your system has dropped below what psi?