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Oklahoma 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 possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Oklahoma 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.
Mirrors should be used:
Only when there may be an emergency.
Regularly.
By a helper to monitor your blind spots.
2.
Which of the following is not an example of a distracted person who should concern motorists?
A driver talking to a passenger in their vehicle
A person sitting on a bench waiting for a bus
A construction worker on the side of the road
3.
Hazardous materials placards are usually shaped like:
Circles.
Triangles.
Diamonds.
4.
What is a bobtail tractor?
A tractor without a trailer
A tractor attached to two trailers
A tractor with a tank
5.
If you remain in neutral for too long while switching gears:
The vehicle will speed up.
You may have trouble putting the vehicle into the next gear.
You may kill the engine.
6.
If driving so slowly that you could impede other drivers, you should:
Drive in the left lane.
Drive while using your four-way flashers.
Drive without using any lights.
7.
In the case of an engine fire, you should not:
Turn off the engine as soon as possible.
Shoot foam through the louvers.
Open the hood.
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