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Tennessee CDL Permit Test - Tank

Number of questions: 20
Passing score: 16
Directions: This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has three or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Commercial Driver Guide. Questions come from chapters covering: Cargo, Air Brakes and Tank Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.
You have made error so far
Passing grade —
4 or fewer errors

If you are unsure if there is enough space for your vehicle to safely pass under an upcoming bridge, you should:

Increase your speed.
Swerve as you pass under the bridge.
Slow down.
Drive on the shoulder.

Talking on a hands-free phone while driving:

Does not distract the driver.
Only distracts the driver if the driver is speaking.
Can be distracting to the driver.

When connecting a converter dolly to a second or third trailer, the trailer height should be:

Slightly higher than the center of the fifth wheel.
Level with the center of the fifth wheel.
Slightly lower than the center of the fifth wheel.
Next to the center of the fifth wheel.

Unless the package is clearly unsafe, a driver needs ____ to accept a package.

The shipper’s certification
A notarized statement
A verbal agreement

An after-trip inspection should be done:

Once a week.
Once a month.
After every trip.

If you notice anything affecting the safety or mechanical functioning of your CMV while driving, you should:

Stay quiet and see if the problem goes away.
Make a written report that includes your concerns.
Try to fix it yourself.

What happens when the wheels of a trailer lock up?

The trailer will often continue to move in a straight line.
The trailer may disengage.
The trailer may swing around.
Steering will become easier.
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