Combination Vehicles Practice Test | North Dakota 2024 #1 Page 3 of 3
Train for FREE online with our North Dakota CDL combination vehicle 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 combination license in 2024, 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 DMV requirements for issuing a combination license may vary from state to state.
15 . An air supply control in its "emergency" position will:
Tractor protection controls in older vehicles may be operated by levers instead of knobs. If an air supply control is set in its "emergency" position, the air supply will be stopped and the trailer emergency brakes will be applied.
16 . Fully-loaded rigs:
Because the weight of cargo gives them a higher center of gravity, fully-loaded rigs are 10 times more likely to roll over in a crash than empty rigs.
17 . Which type of vehicle is most prone to the “crack-the-whip” effect?
Triple combination trailers are most vulnerable to the "crack-the-whip" effect.
18 . To help prevent a rollover, cargo should be:
To reduce the risk of a rollover, the weight of cargo in a trailer should be kept as low to the ground as possible. Weight should not be placed primarily on one side of the trailer as this could make the trailer lean, increasing the risk of a rollover.
19 . Starting in which year were newly manufactured trailers required to have ABS?
All trailers and converter dollies manufactured on or after March 1, 1998 must be equipped with Anti-Lock Braking Systems (ABS).
20 . When coupling a trailer:
When coupling, make sure you couple matching glad hands. They are often color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
See the exact questions that will be on the 2024 North Dakota DMV exam.
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