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Prevent wheel lockup
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Prevent the air compressor from overheating
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Prevent the front brakes from being used on ice
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Prevent the brakes from being used if downshifting would be more effective
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Kansas CDL Permit Test - Double
(From the 2021 Kansas CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 16 |
Directions:
This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Each question has four possible answer choices. Test questions come from the Kansas Commercial Driver’s Manual. Questions come from chapters covering: Driving Safely, Cargo, Air Brakes (if applicable), Combination Vehicles and Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
Passing grade —
4 or fewer errors
advertising
1.
What does ABS do?
2.
When connecting a converter dolly to the rear trailer, the trailer height should be:
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Higher than the center height of the fifth wheel.
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Lower than the center height of the fifth wheel.
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The same height as the fifth wheel.
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About shoulder height.
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3.
When driving with covered cargo, a cover that flaps:
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Is acceptable.
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Allows air to keep the cargo cool.
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Can tear loose.
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Can attract birds.
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4.
Bridges usually:
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Freeze, but only once the temperature drops significantly below 32 degrees Fahrenheit.
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Freeze after other road surfaces freeze.
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Freeze before other road surfaces.
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Have heaters to prevent them from freezing.
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5.
On a leaf spring, the leaves:
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May be broken.
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Are not required.
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Should not be broken.
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Should shift.
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6.
What is the Gross Vehicle Weight Rating (GVWR)?
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The maximum permitted total weight of a vehicle and its cargo
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The minimum permitted weight of a trailer
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The maximum permitted weight of a trailer and its contents
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The maximum permitted weight of only a tractor
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7.
The air compressor governor controls:
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When the air compressor pumps air into the air storage tanks.
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How fast air is pumped into the air storage tanks.
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The temperature of air pumped into the air storage tanks.
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The speed of the vehicle.
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