CDL COMBINATION PRACTICE TEST NORTH DAKOTA

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Drivers who want to drive combination vehicles must pass the combination vehicles test. The North Dakota CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the North Dakota CDL Manual. Take this practice test now to prepare for the actual ND CDL combination test!
1. Weight that is loaded so there is a high center of gravity:
makes a vehicle easier to handle.
reduces the chance that the load will shift to the side or fall off.
causes greater chance of rollover.
All of the above.
2. What can cause poor traction?
Too little weight on the driving axles.
Overloading the truck.
Too much weight on the steering axle.
All of the above.
3. Most heavy-duty vehicles use:
hydraulic brakes.
pressure brakes.
air brakes.
solid brakes.
4. If you have convex mirrors, be aware that:
objects may appear to be faster than they really are.
everything appears smaller in a convex mirror than it would if you were looking at it directly.
in a convex mirror objects appears larger than they really are.
objects seem closer than they really are.
5. If you get stuck on railroad tracks, you should:
stay in the vehicle and call for help.
have a helper push your vehicle.
get out of the vehicle and away from the tracks.
check the engine compartment quickly.
6. To test the tractor-semitrailer connection for security:
pull out the air supply knob.
go under the trailer and look into the back of the fifth-wheel.
check that the trailer is locked onto the tractor by pulling the tractor gently forward while the trailer brakes are still locked.
plug the electrical cord into the trailer and fasten the safety catch.
7. If a vehicle is equipped with ABS, when you start the engine:
the wheels will lock up.
the ABS indicator light on the dash should come on and then turn off.
the spring brakes will come on.
the trailer emergency brakes will come on.
8. If your truck catches fire, the first thing you should do is to:
pull off the road and park in an open area.
pull into a service station and call for help.
get off the vehicle, open the hood and start shooting foam to keep the engine cool.
get the vehicle off the road and park near other vehicles.
9. After supplying air to the trailer brake system, you should check the brake system for crossed air lines by:
shutting the engine off so you can hear the brakes.
applying and releasing the trailer brakes and listening for the sound of trailer brakes.
checking the air brake system pressure gauge for signs of major air loss.
All of the above.
10. The iron trailer supports are up, and the full weight of the trailer is resting on the tractor. Make sure:
the safety latch is not engaged.
you are in a low enough gear.
there is enough clearance between the upper and lower fifth wheel.
there is enough clearance between the rear of the tractor frame and the landing gear.
 
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Frequently Asked Questions

In North Dakota, teens must follow the three steps of the Graduated Licensing Program to obtain a class D driver license:
  1. For a learner’s permit, you must be at least 14 years old.
  2. For an intermediate license, you must either hold the permit for one year or be 16 years old and have held the permit for at least six months.
  3. For a standard license, you must be at least 16 years old and complete a road test.

You can visit a North Dakota driver license office or take the DMV written test at home using KnowTo Drive, the official knowledge testing platform. For this second option, if you are under 18, you must be supervised by a parent/legal guardian with a valid driver's license. After passing the exam, you are still required to visit the DOT to validate your identity and complete the testing process. 

You'll need to bring the following documents:
  • Completed application (if you are under 18, a parent/legal guardian must sign your application and assume financial liability).
  • Proof of identification (if your name has changed, please provide proof of your current legal name).
  • Proof of Social Security Number.
  • Proof of North Dakota residence (two documents).
Use this checklist to ensure you have all the required documents before your appointment.


You can take the DMV written test in Arabic, Chinese, English, French, Nepali, Russian, Serbo-Croatian, Spanish, Somali, Swahili, Turkish, Vietnamese, Pashto, and Dari. Additionally, automated American Sign Language and audio testing are provided at the following offices: Fargo, Jamestown, Bismarck, Dickinson, Williston, Minot, Devils Lake, and Grand Forks.

To prepare for the DMV written test, you can refer to the official North Dakota Driver's Handbook. The manual covers various information about road signs, parallel parking, turning, passing a vehicle, yielding the right of way, etc. Study carefully the different sections and test your knowledge with our free practice tests!

The DMV written test has 25 questions, and you have 60 minutes to answer them. The questions cover different topics about road rules and safe driving practices. 

You are allowed up to 5 wrong answers. This means that the passing score is 80%. It's important to stay focused during the exam and take the time to read the questions carefully to minimize errors and pass the DMV written test on the first attempt.

For new drivers in North Dakota, various restrictions apply:
  • With a learner's permit, you must drive under the supervision of a parent/guardian or an adult aged 18 or older who has a minimum of three years of driving experience, seated beside you.
  • With an intermediate license, if you are under 16, you can drive alone except between sunset or 9 p.m. and 5 a.m. or for work, school, and religious activities.

Additionally, all drivers under 21 are considered legally under the influence of alcohol if their blood alcohol content (BAC) is .02 or greater. For those under 18, using cell phones while driving is forbidden except during emergencies.

You must wait 24 hours before retaking the DMV written test after a failure. You have 5 attempts within a year, but each time you need to pay another fee. If you leave the testing area early before completing the exam or if you bring cell phones or electronic devices, you may be disqualified. Additionally, attempting to cheat during an online test will result in automatic failure.

ND CDL Combination Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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