Free North Dakota CDL Combination Vehicles Practice Test 2022

You have to pass the North Dakota CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for good source material for your coming CDL test? You are in the right place. Our ND CDL Practice Test is a great resource for beginners. The test is designed for you to have exactly the experience of the exam as you will be more familiar with both the test format and the subject. Our CDL practice test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official North Dakota CDL Manual so you can be sure that the information in our test is accurate and relevant to your examination. In addition, each question has a detailed explanation so that it is very useful for you to learn from your mistakes. Preparing well before test day with questions and content that we cover. Start with our Free North Dakota CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 ND commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
ND CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Which of the following is part of the electrical and air lines coupling inspection?
2.
Semi-trailers made before 1975 that are equipped with air brakes:
3.
The air lines on a combination vehicle are often colored to prevent them from mixing up. The emergency line is _____, the service line is _________.
4.
A tractor with a _______ trailer, requires the most amount of stopping distance.
5.
To unlock the fifth wheel, the locking lever should be placed in the ______ position.
6.
The higher the center of gravity of your truck, the:
7.
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
8.
There are two things that a driver can do to prevent a rollover. They are: (1) keep the cargo as close to the ground as possible and (2):
9.
To help prevent rollover, keep the center of gravity of the load as low as possible, and:
10.
In order to allow the trailer brakes to be applied more quickly, what is connected to the service air line?
11.
The trailer hand valve should be used:
12.
Improperly greased or lubricated fifth wheels will cause:
13.
When checking the trailer emergency brakes, the tractor protection control valve should be placed in what position?
14.
The best and earliest way to recognize that your trailer has started to skid is:
15.
When coupling or uncoupling, all of these apply to the trailer except:
16.
Like tractor air tanks, trailer air tanks should be kept free of dirt and oil by:
17.
All of these are part of the final 3 steps of uncoupling the trailer except:
18.
What gear should the tractor engine be in after you uncouple the trailer and are inspecting the trailer supports?
19.
The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that:
20.
When driving a set of doubles, it is necessary to close which shut-off valve in the last trailer: