CDL COMBINATION PRACTICE TEST ALASKA
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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Alaska CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Alaska CDL Manual. Take this practice test now to prepare for the actual AK CDL combination test!
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1.
The tire load rating is stated:
on the side of each tire.
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inside the suspension system.
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on each axle.
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2.
The iron trailer supports are up, and the full weight of the trailer is resting on the tractor. Make sure:
there is enough clearance between the rear of the tractor frame and the landing gear.
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the safety latch is not engaged.
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you are in a low enough gear.
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3.
When you are uncoupling a loaded trailer, lower the landing gear until:
the tractor frame is under the trailer.
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makes contact with the ground, and leave the trailer off the fifth wheel.
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it makes firm contact with the ground.
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4.
Which of the following makes a rollover more likely?
If the load is to one side so it makes a trailer lean.
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Weight that is loaded so there is a high center of gravity.
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All of the above.
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5.
When you use your mirrors while driving on the road, you should:
check them quickly.
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only use the driver's side mirror.
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avoid checking them regularly.
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6.
When backing a trailer, you should:
pull-up frequently to reposition the vehicle.
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turn the steering wheel toward the direction you want to go.
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not back up in a straight line.
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7.
Do not use the trailer hand valve in driving because:
the trailer emergency brakes will come on.
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of the danger of making the trailer skid.
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All of the above.
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8.
You are coupling a tractor to a semi-trailer. You have backed up but are not yet under the trailer. Before backing under the semi-trailer, you should:
supply air to the trailer system and lock the trailer brakes.
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begin raising the landing gear.
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connect the electrical cord and check the air lines.
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9.
When should you use the hand valve to park a combination vehicle?
When parking downhill.
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Never.
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To park at loading docks.
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10.
To unlock the fifth wheel, pull the release handle to the _______ position.
open
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closed
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neutral
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AK CDL Combination Test
Number of questions: | 20 |
Correct answers to pass: | 16 |
Passing score: | 80% |
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