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Stay in the vehicle.
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Get out of the vehicle and call for assistance.
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Continue trying to remove the vehicle from the tracks.
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Walk down the tracks to look for an oncoming train.
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District Of Columbia CDL Permit Test - Tank
(From the 2021 District Of Columbia CDL driver handbook)
| 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 four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Washington D.C. 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.
Passing grade —
4 or fewer errors
advertising
1.
What should you do if your vehicle gets stuck on railroad tracks?
2.
When checking the engine compartment:
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The parking brake should not be engaged.
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Wheels should be chocked.
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The engine should be running.
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The gearshift should be in first gear.
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3.
How many seconds of following distance per every 10 feet of vehicle should you maintain when traveling more slowly than 40 mph?
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One second
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Two seconds
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Three seconds
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Four seconds
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4.
When driving a bobtail tractor, you should be aware that:
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Bobtails stop very easily.
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Bobtails cannot drive as fast as tractors with semitrailers.
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Bobtails are more difficult to stop than tractors with semitrailers.
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Bobtails are illegal in most states.
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5.
Who must provide emergency response information?
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The shipper
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The driver
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The local fire department
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The Department of Homeland Security
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6.
A driver should always:
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Stay in their lane.
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Have an emergency plan.
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Stay in the left lane.
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Drive above the speed limit.
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7.
Roads are slippery when it first begins to rain because:
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Water is slippery.
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The fresh rain mixes with oil on the roadway.
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The water has nowhere to go.
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Concrete can be slippery.
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