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Two to three seconds
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Five to six seconds
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12 to 15 seconds
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Kentucky CDL Permit Test - Knowledge Test Class B
(From the 2021 Kentucky 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 three possible answer choices. Test questions come from the Kentucky Commercial Driver 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.
Scan the road ____ ahead of your vehicle.
2.
Wheels with welding repairs are:
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Safe to be used if the repairs were done by a professional.
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Safe to be used if the repair seems solid.
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Not safe to be used.
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3.
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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4.
Most heavy trucks with manual transmissions require ____ to change gears.
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Single clutching
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Double clutching
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Triple clutching
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5.
Air tank drains should:
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Only be used by mechanics.
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Only be used when it is wet outside.
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Be used to drain the tanks completely.
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6.
Reading a text message while driving is:
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Encouraged.
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Allowed only if you are not pulling a trailer.
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Illegal.
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7.
Roads are especially slippery right after it begins to rain because:
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The water mixes with oil and grease on the road.
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Tires are not made to drive in wet weather.
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The water yet hasn't absorbed the dirt and grease.
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