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Maryland 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 Maryland Commercial Driver Guide. Questions come from chapters covering: Driving Safely, Tank Vehicles, Hazardous Materials and Combination 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

A convex mirror is sometimes called a ____ mirror.


A highway curve should be taken:

At or slightly above the posted speed limit.
At the posted speed limit.
Well below the posted speed limit.

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

Within seconds.
Within five minutes.
After about three minutes.

If a vehicle is equipped with power steering, you should inspect:

The hoses.
The pumps.
Both of the above.

Which of the following is acceptable?

Dual tires that do not come into contact with each other
Tires of mismatched sizes if used only on short trips
Retreaded tires on the front of a school bus
Tires with cracks

When checking your vehicle's lights before driving:

The vehicle should be running and in gear.
The engine should be turned off.
The check can be done from inside the vehicle.
The check can be done by looking at a reflection from a shiny surface.

If other vehicles are having a difficult time getting around your truck on a road with two or more lanes, you should:

Speed up.
Drive on the shoulder.
Use the right lane.
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