20 Tests

CDL Tank Endorsement Test Online | District Of Columbia 2021

Train for FREE with our District Of Columbia tank endorsement practice test online. 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 DC tank license in 2021, practice as much as.. Read More

Train for FREE with our District Of Columbia tank endorsement practice test online. 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 DC tank 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 CDL tank vehicle endorsement may vary from state to state.

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1 . Slippery roadways usually:

Can be avoided by driving at night. It takes a longer distance to stop a vehicle on a slippery road than it does on a dry road. Use caution when driving under conditions that could cause a road surface to become slippery.

2 . A person should not smoke within ____ of a vehicle placarded for Class 3 or Division 2.1 materials.

1,000 feet Do not smoke within 25 feet of a placarded cargo tank used to transport Class 3 or Division 2.1 hazardous materials.

3 . If an Anti-Lock Braking System (ABS) malfunctions:

The brakes will not work. On a vehicle with ABS, a yellow malfunction lamp on the instrument panel will illuminate to alert you if the braking system is not working.

4 . How many air lines does a combination vehicle have?

Four Every combination vehicle has two air lines: the service line and the emergency line.

5 . When driving a bobtail tractor, you should be aware that:

Bobtails are illegal in most states. Bobtail tractors are tractors that are not attached to any semitrailers. When operating a bobtail, you should be aware that stopping can be difficult and that it will take a longer distance to bring the bobtail to a complete stop than it would a tractor attached to a loaded semitrailer.

6 . If loading corrosive materials, you should not:

Ask someone to help you. Containers of corrosive materials should be kept in their correct upright positions. They should not be dropped or rolled.

7 . When loading containers of hazardous materials, you should not use:

Other helpers. When loading or unloading containers of hazardous materials, you should not use hooks, or any other tools that could damage containers or packaging.

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