20 Tests

CDL Combination Vehicles Practice Test Online | North Dakota 2021

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 2021, practice as much as.. Read More

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 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 DMV requirements for issuing a combination license may vary from state to state.

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1 . To lower the risk of a rollover, you should:

Stack the cargo as high as possible. To lower the risk of a rollover, load your cargo as closely to the ground as possible. To further reduce this risk, take curves and corners slowly.

2 . A loss of air pressure in the emergency line will cause:

The emergency brakes to activate. The emergency air line controls the emergency brakes on a combination vehicle. A loss of air pressure in the emergency line will cause the emergency trailer brakes to activate.

3 . Combination vehicles:

Are easier to drive than single commercial vehicles. Combination vehicles are usually heavier and longer than single commercial vehicles. For these reasons, they usually require more driving skill than single commercial vehicles.

4 . A combination vehicle has:

Four air lines. Combination vehicles have two air lines: a service line and an emergency line.

5 . In a double or triple combination:

The weight of the trailers does not matter. When positioning trailers in a combination, the most heavily-loaded trailer should be the closest to the tractor. The lightest trailer should be positioned in the rear.

6 . Using the trailer hand brake while experiencing a trailer jackknife will:

Continue the skid. If you are experiencing a trailer jackknife, you can help your tires regain traction by releasing the brakes. Using a trailer hand brake while experiencing a skid will only cause the skid to continue.

7 . Simply changing lanes can cause:

Other drivers to reduce their speed. Due to the "crack-the-whip" effect caused by rearward amplification, changing lanes too quickly in a combination vehicle can result in a rollover.

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