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.
The shut-off valves at the back of the last trailer should be:
2.
Spring brakes are not required on trailers and dollies built before:
3.
The trailer service brakes should be tested with the hand control, and controlled during normal operation by:
4.
Tractor with a ______ trailer requires the shortest amount of stopping distance.
5.
You have pushed the trailer air supply valve. You should not back a tractor under a trailer until the whole air system is:
6.
Rearward amplification is a major cause of:
7.
If the service line comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
8.
When driving a combination vehicle with multiple trailers or dollies, all air shut-off valves except the last one at the back must be:
9.
The locking jaws should be around:
10.
A driver crosses the air lines when hooking up to an old trailer. What will happen?
11.
When unlocking the fifth wheel in Step 6, all of the following apply except:
12.
Trailers will have an ABS malfunction lamp:
13.
If the spring brakes are not released when you pushed the trailer air supply valve you should:
14.
In normal driving, some drivers use the hand valve before the brake pedal to prevent a jack-knife. Which of the statements is true?
15.
Why should you be sure that the fifth wheel plate is greased as required?
16.
The "rearward amplification" value means:
17.
You supply air to the trailer tanks by:
18.
Rocky mountain doubles have a rearward amplification of about:
19.
To test the tractor protection valve, pump the brakes with the engine off until the trailer air supply knob pops out, usually at:
20.
Glad hands are usually connecting which of these?