CDL Class B Commercial Driver’s License Practice Test 4

This is a timed quiz. You will be given 45 seconds per question. Are you ready?

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When will you lose your CDL for life?

Correct! Wrong!

If you use a CMV to commit a felony involving controlled substances or if you commit an alcohol-related offense for the second time, you will lose your CDL for life.

You will be denied or lose your hazardous materials endorsement, if you _______.

Correct! Wrong!

You will be denied or lose your hazardous materials endorsement, if you are under indictment for certain felonies, have a conviction in military or civilian court for certain felonies and/or have been committed to a mental institution.

Who takes the general knowledge test?

Correct! Wrong!

When you apply for a commercial driving job. You should provide your employer information on all driving jobs that you held over the past _____.

Correct! Wrong!

When you apply for a commercial driving job. You should provide your employer information on all driving jobs that you held over the past 10 years.

You must notify your motor vehicle licensing agency within _____ if you are convicted in any other jurisdiction of any traffic violation.

Correct! Wrong!

You must notify your motor vehicle licensing agency within 30 days if you are convicted in any other jurisdiction of any traffic violation.

Which of the following is slow moving vehicle that may be a road hazard for other drivers?

Correct! Wrong!

Motorists who fail to maintain normal speeds are hazards. There are some vehicles that cannot reach very high speeds and seeing them is a hazard clue. Examples of these types of vehicles are mopeds, farm machinery, construction machinery and tractors.

If you can't stop for the night, and you will not be able to sleep a full night's rest, a nap as short as _____ will do more to overcome fatigue than a quick coffee stop.

Correct! Wrong!

If you can't stop for the night, and you will not be able to sleep a full night's rest, a nap as short as 30 minutes will do more to overcome fatigue than a quick coffee stop.

If the oil pressure is low, dropping or fluctuating, you should _____.

Correct! Wrong!

If the oil pressure is low, dropping or fluctuating, you should stop immediately.

Why should you back and turn toward the driver's side?

Correct! Wrong!

You should back and turn toward the driver's side so you can see better.

Placards must be _______.

Correct! Wrong!

Placards must be readable from all four directions of the vehicle.

What is the Gross Combination Weight?

Correct! Wrong!

The Gross Combination Weight is the total weight of a powered unit, plus trailer(s), plus the cargo.

A general rule for tying down cargo: you need one tiedown for each _____ ft. of cargo.

Correct! Wrong!

You need one tiedown for each 10 ft. of cargo.

Why should you exercise special care when transporting dry bulk tanks?

Correct! Wrong!

You should exercise special care when transporting dry bulk tanks because they have a high center of gravity and the load can shift

Commercial drivers need to be familiar with a number of abbreviations. GCW is one of them and it stands for ________.

Correct! Wrong!

Commercial drivers need to be familiar with a number of abbreviations. GCW is one of them and it stands for Gross Combination Weight.

Why are heavy trucks more at risk for turning over?

Correct! Wrong!

The truck's center of gravity moves higher up from the road as more cargo is added. This makes the trucker easier to turn over.

On large buses low pressure warning devices usually signal at ______.

Correct! Wrong!

Typically, on large buses the low pressure warning devices signal at 80-85 psi.

Pressing and releasing the brake pedal unnecessarily can _______.

Correct! Wrong!

Pressing and releasing the brake pedal unnecessarily can let air out faster than the compressor can replace it

What vehicles must be equipped with emergency brakes and parking brakes?

Correct! Wrong!

All trucks, truck tractors and buses must be equipped with emergency brakes and parking brakes.

When you release the brakes and reduce the air pressure what makes up for that air loss?

Correct! Wrong!

When you release the brakes and reduce the air pressure, the lost air must be made up by the air compressor.

Controlled braking is only possible _________.

Correct! Wrong!

Controlled braking is only possible while enough air remains in the air tanks.

You need to make sure the electrical lines of your tractor/coupling are not ______.

Correct! Wrong!

You need to make sure the electrical lines are not tangled, pinched or dragging against tractor parts.

The minimum tread depth for steering axle tires should be _____.

Correct! Wrong!

The minimum tread depth for steering axle tires should be 4/32.

Which of the following parts should you be able to identify for your CDL Skills test?

Correct! Wrong!

You should be able to identify your vehicle's oil pressure gauge, its air brakes, its emergency equipment and exhaust system.

If your vehicle is equipped with a cargo lift, you need to ________.

Correct! Wrong!

If your vehicle is equipped with a cargo lift, you need to explain how it should be checked for correct operation.

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