Free New Jersey CDL Double/Triple Trailers Practice Test 2022

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 CDL Practice Test NJ has the same questions as the real exam which is based on the NJ 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 New Jersey 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 NJ commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NJ CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Which is true when checking air flow to all trailers?
2.
What is the purpose of an antilock braking system (ABS)?
3.
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.
4.
How can you be sure you supplied air to a second trailer?
5.
When coupling, correct trailer height should:
6.
When driving a truck with more than one trailer, which trailer should be first behind the truck?
7.
An air brake is made up of which of the following braking systems?
8.
Brake drums should not have cracks longer than what length?
9.
The most common type of foundation brake is?
10.
Letting up on the brake pedal _______.
11.
The tractor protection valve should pop out when air pressure falls to:
12.
What is a front brake limiting valve?
13.
Typically, air storage tanks hold enough air to allow the brakes to be used _______ even if the compressor stops working.
14.
When you make an emergency stop, you should _________.
15.
Which of the following factors explains why the total stopping distance for air brakes is longer than that for hydraulic brakes?
16.
If your vehicle has an alcohol evaporator, the evaporator's purpose is to _____.
17.
Why should you never push the brake pedal down when the spring brakes are on?
18.
In dual-air systems the pressure should build to _______.
19.
Why should you drain water from compressed air tanks?
20.
The last step to uncouple a converter dolly is: