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Water and oil
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Ammonia
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Wood
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Chlorine
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West Virginia CDL Permit Test - Knowledge Test Class B
(From the 2021 West Virginia CDL driver handbook)
| Number of questions: | 50 |
| Passing score: | 40 |
Directions:
This license is required for driving a single vehicle with a GVWR of more than 26,001 pounds, and a trailer not to exceed 10,000 pounds gross vehicle weight rating, or a vehicle designed to transport 24 or more people (including the driver). To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has four possible answer choices. Test questions come from the West Virginia Commercial Driver’s License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving.. Endorsements that may be used with a Class B CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
Passing grade —
10 or fewer errors
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1.
What is removed when an air tank is drained?
2.
The service brake system:
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Applies and releases the brakes when you press the brake pedal while driving normally.
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Applies and releases the parking brakes.
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Applies and releases the emergency brake.
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Applies and releases the axle brake.
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3.
During a written exam:
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Cell phones may be placed on airplane mode.
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Cell phones must be turned off.
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Cell phones may be left on, but must be set in a face down position.
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Cell phones may be left on.
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4.
Fatigue:
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Has little effect on driving.
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Can impair driving.
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Is not noticeable.
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5.
When steering to avoid a crash, you should:
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Only use one hand to steer.
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Keep both hands on the steering wheel.
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Not use your mirrors to check other lanes.
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Speed up as you get nearer to the hazard.
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6.
Air tank drains:
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Allow rain water to enter the tank.
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Are used to drain water and compressor oil from the air tank.
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Should never be opened.
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Must remain open during transit.
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7.
Cargo on flatbed trailers should be:
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Tied down.
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Glued down.
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Left loose.
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Pushed to one side.
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