You must be properly restrained by a safety belt at all times when driving a commercial motor vehicle.

You must always wear a seat belt.

You do not need to wear a seat belt.

You are required to wear a seat belt, but only if transporting more than 500 pounds of cargo.

You must always wear a seat belt.

Lane changes should be made slowly and smoothly.

Should be done with a jerking motion.

A header board protects a driver from moving cargo in the event of a crash or emergency stop.

Protect drivers from being hit by cargo.

Protect drivers' heads when they are entering the cab of a truck.

When examining the engine compartment during a pre-trip inspection, you should check the engine oil level, the radiator coolant level, and the condition of the hoses.

A check of the engine oil level.

It is essential that a vehicle's engine have adequate oil pressure. An engine can be destroyed rapidly if it is run without oil.

An engine can be destroyed quickly.

A vehicle will get better gas mileage.

An engine can be destroyed quickly.

Class B Driving Test | Missouri 2026 #1

Train for FREE online with our Missouri class B license 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 MO CDL class B permit in 2026, 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 CDL class B requirements may vary from state to state.

Number of Question 50

Passing Score 40

Number of Tests 20

Class B Driving Test | Missouri 2026 #1

1 . When driving a truck requiring a CDL:

2 . A lane change:

3 . Which of the following groups of people is not covered by move over laws?

4 . Header boards:

5 . When transporting cargo, drivers must check the securement of the cargo every:

6 . A pre-trip inspection should include:

7 . Without engine oil:

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