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Delaware 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 State of Delaware Commercial Driver License Manual. 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
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1.
When uncoupling a trailer, landing gear should be:
Raised completely.
Lowered halfway.
Just off the pavement.
Firmly on the ground.
2.
When changing lanes, you should:
Move quickly before other vehicles get into the lane you wish to occupy.
Move slowly, in case another vehicle is in the lane you wish to occupy.
Not use your turn signal.
Never use the right lane.
3.
You should check and adjust your mirrors:
Before driving.
While driving.
After driving.
4.
If you are driving so slowly that you could impede other vehicles, you should:
Stay in the left lane.
Drive with your emergency flashers activated.
Not use any lights.
Wave an arm out of your window.
5.
You may be an aggressive driver if you:
Expect delays on your drive.
Slow down and maintain a reasonable following distance.
Make hand gestures that could anger other drivers.
6.
If loading corrosive materials, you should not:
Roll the containers.
Load the containers by hand.
Use the vehicle’s parking brake.
7.
The trailer hand valve:
Should always be used for parking.
Should only be used for parking on a downgrade.
Should never be used for parking.
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