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Within seconds.
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Within five minutes.
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Within three minutes.
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After five minutes.
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South Carolina CDL Permit Test - Tank
(From the 2020 South Carolina 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 two, three or four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the South Carolina 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.
After a vehicle is started, the engine oil pressure should come up to normal:
2.
In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:
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Air pressure drops to a level between 20 and 45 psi.
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You are experiencing a trailer jackknife.
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Wheels have regained traction after a skid.
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Air pressure is above 45 psi.
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3.
Which of the following is not an example of a driver who might be a hazard?
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A driver operating a vehicle without first scraping ice off the windshield
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The operator of a rental truck
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The driver of a station wagon with items covering the back windows
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A person operating a pick-up truck
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4.
Skids happen when:
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Tires lose their grip on the road.
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There is too much weight in the trailer.
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ABS kicks in.
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5.
Which of the following is acceptable if found during a pre-trip inspection?
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Tires in mismatched sizes
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Tread depth of 2/32 of an inch in the grooves of the front tires
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Tires manufactured by different makers
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Cracks in the tires
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6.
Exercise will help a person sober up after drinking.
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True
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False
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7.
Carrying liquids in a leaking tank:
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Is acceptable if it is only for a short distance.
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Is illegal.
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Is not dangerous if it is raining.
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Is acceptable if you are running behind schedule.
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