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West Virginia 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 four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the West Virginia Commercial Driver’s 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

When you are driving while drowsy, you should:

Press on and try to finish the trip.
Take drugs to keep awake.
Stop and take a nap.
Stop for a coffee break.

What is another name for the service line?

The signal line
The cable line
The surplus line
The power line

When transporting hazardous materials, placards:

Should only be used with explosives.
Should be used on all four sides of a vehicle.
Should only be used by Class A licensed drivers.
Should be used to reduce insurance rates.

Driving too fast:

Is a major cause of fatal crashes.
Can be a good way to get to your destination quickly.
Should only be done if the roadway is dry.
Is acceptable in light traffic.

When switching gears, what happens if you remain in neutral for too long?

The vehicle will speed up.
You may have trouble getting the vehicle into the next gear.
You may kill the engine.
The vehicle will be difficult to stop.

Tread depth in the major grooves on a front tire should be at least:

1/32 of an inch.
2/32 of an inch.
4/32 of an inch.
3/4 of an inch.

Test the tractor protection valve by:

Removing the air supply knob.
Removing the parking brake control knob.
Releasing air with the brake pedal.
Releasing air with the gas pedal.
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