For safe driving, it is essential that you maintain cushions of space on all sides of your vehicle. This helps to ensure that you will have time to take appropriate action if a problem arises.

Encouraged, as it allows you time to react to unexpected hazards.

Not encouraged, as it slows the flow of traffic.

Encouraged, as it allows you time to react to unexpected hazards.

Only encouraged if you are traveling with a passenger.

Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.

Be used to drain the tanks completely.

Only be used when it is wet outside.

Be used to drain the tanks completely.

When inspecting your brakes, you should check for cracked drums; shoes or pads covered in oil, grease, or brake fluid; and shoes that are missing, broken, or worn dangerously thin.

Brake pads are not covered in grease.

Brake pads are not covered in oil.

Before coupling together a tractor and a trailer, you should make sure the trailer is at the proper height. If the trailer is too low, the trailer nose may be damaged. If the trailer is too high, it may not be able to couple correctly.

Will couple without any problems.

When approaching your vehicle for an inspection, you should look underneath the vehicle for fresh leaks of oil, coolant, grease, or fuel. Seeing a fresh puddle of any of these fluids could indicate a safety issue with your vehicle.

A puddle of oil under the vehicle

Double Triple Test | Missouri 2024 #2 Page 3 of 3

Train for FREE with our Missouri CDL double triple 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 MO CDL double triple 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 may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

Double Triple Test | Missouri 2024 #2 Page 3 of 3

15 . Maintaining a cushion of space between your vehicle and the vehicle ahead is:

16 . Air tank drains should:

17 . Which of the following is a sign that brakes will need repair?

18 . A trailer that is not at the proper height:

19 . When starting an engine, oil pressure should come up to a normal level:

20 . When approaching your vehicle as part of your pre-trip inspection, you should look for what as a sign of trouble?

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