FREE Air Brakes Endorsement Test Online | North Dakota 2023
Train for FREE online with our North Dakota CDL air brake test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a ND Class A/Class B driver license in 2021, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that the requirements for CDL may vary from state to state.
1 . Emergency brakes are:
All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes.
2 . The safety valve located on the first tank opens:
In an air brake system, the first tank that receives compressed air has a safety valve that releases air if the pressure gets too high. It is usually set to open at 150 psi. If the valve must open, there is a fault in the system that should be repaired by a mechanic.
3 . In a vehicle with dual air brakes, what happens if one system is low on pressure?
In a dual air brake system, if one of the air systems gets very low on pressure, either the front or rear brakes will not be operating fully. You should bring your vehicle to a safe stop and have the air system repaired.
4 . Dollies equipped with ABS are required to have malfunction lamps located where?
A dolly equipped with an Anti-Lock Braking System (ABS) is required to have a yellow malfunction lamp located on its left side.
5 . To inspect slack adjusters on S-cam brakes, you need to:
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
6 . Braking mechanisms are located ____ a brake drum.
Drum brakes are attached to the wheels and located on the axles of a vehicle. The braking mechanisms that cause the vehicle to stop can be found inside of a drum brake.
2023 North Dakota | Frequently Asked Questions
The CDL test in North Dakota consists of 50 questions. You must correctly answer at least 40 questions to pass (80 percent ).
To operate any of the following vehicles, you'll need a CDL: A single vehicle with a gross vehicle weight rating (GVWR) of more than 26,000 lbs. A combined vehicle having a GVWR of more than 26,000 pounds capable of towing a unit with a GVWR of more than 10,000 pounds.
If you were convicted of a North Dakota DUI while driving a commercial vehicle and your CDL was suspended, you may be entitled to get it reinstated. You'll have to: Meet any court requirements. Retake the knowledge and skills examinations for commercial drivers.
A written knowledge examination plus a skills test make up the Commercial Driver's License (CDL) exam. There are seven different types of knowledge tests: one for general information, five for specific endorsements, and one for Air Brakes. Each knowledge test is graded individually, and most drivers only take three or four of them.
A driver's license in North Dakota expires at midnight on the applicant's birthday in the year specified on the license. Commercial licenses are valid for four years, beginning with the holder's birthday and ending with the year specified on the license.
