Free North Dakota CDL Combination Vehicles Practice Test 2023

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 2021 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
To prevent moisture from entering the electrical cable when disconnected:
The likelihood of a fully loaded rig turning over compared to an empty trailer is:
One good way to prevent rollover is:
When inspecting the coupling area, all of the following are required except:
When you open the emergency shut-off valve at the back of the last trailer after supplying air to trailer(s):
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
You have coupled with a semitrailer, where should you put the iron trailer supports before driving away?
After you supply air to the trailer, make sure the air lines are not crossed and the trailer brakes are working. This is done by:
When you are uncoupling a loaded trailer, you should lower the landing gear until it:
Before coupling or uncoupling, the trailer wheels should always be:
When should you use the hand valve to park a combination vehicle?
To help release the fifth wheel locking lever:
The emergency air line is usually what color?
Converter dollies:
Some of the points for inspecting the coupling include the following except:
To test the trailer brakes before driving, use the hand valve or the:
You are coupling a tractor to a semitrailer and have backed up, but are not under it. What should you hook up before backing under?
What will happen if the air lines are crossed when you hook up to an old trailer?
The hand valve should be used:
Where should the tractor be when you inspect the landing gear after uncoupling the trailer?