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.
The part of the combination vehicle most likely to turn over is the:
2.
What is a modulating control valve?
3.
What should you do when the low air pressure warning comes on?
4.
Automatic slack adjusters ________.
5.
The most efficient way to drive down a long grade is to ________.
6.
The increased likelihood of doubles and triples turning over is called:
7.
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?
8.
When driving doubles or triples in adverse or slippery weather conditions, all of the following are true except:
9.
Air tanks need to be drained ______.
10.
An air compressor can be cooled by _______.
11.
You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should:
12.
When the safety valve releases air this indicates ___________.
13.
When driving doubles or triples, for safer handling which trailer should be at the rear?
14.
If your vehicle is not equipped with ABS, when you brake hard on a slippery surface what may occur?
15.
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?
16.
When testing the trailer emergency brakes, charge the system, pull out the trailer air supply control, and:
17.
Why should you never leave your vehicle unattended without applying the parking brakes?
18.
What does the air compressor governor control?
19.
Vehicles with air brakes have pressure gauges connected to the _______.
20.
The pintle hook should never be unlocked when: