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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.
When driving a tank, a surge:
Is usually helpful.
Can be dangerous.
Is not a concern.
2.
If transporting a package that contains radioactive materials, it is important to know that:
Radiation surrounds the package and will pass through to other packages.
The package should be transported in the cab.
The package should be loaded on their side.
3.
You will often have to drive your vehicle under bridges and overpasses. If approaching such an opening, you should:
Assume the posted clearance height is accurate.
Assume the posted clearance height is inaccurate.
Measure the height of the opening before proceeding.
4.
Which of the following is not required emergency equipment?
Red reflective triangles
Flares
A flashlight
5.
Hydroplaning:
Only occurs at extremely high speeds.
Can occur at speeds as low as 30 mph.
Happens most frequently when tire pressure is too high.
6.
When braking with ABS, you should:
Pump the brake pedal.
Brake normally.
Brake harder than you would with a different braking system.
7.
What does an Anti-Lock Braking System (ABS) do?
It allows a vehicle's wheels to lock up.
It prevents a vehicle's wheels from locking up.
It makes turning a vehicle easier.
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