KY CDL DOUBLES TRIPLES PRACTICE TEST
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Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The Kentucky doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The KY CDL doubles triples test covers the following sections of the Kentucky CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this KY CDL practice test now to prepare for the actual test!
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1.
For safe handling, the heaviest trailer should be:
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behind the tractor.
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the last trailer.
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the second trailer in a triple.
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None of the above.
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2.
Which of the following is a good way to avoid becoming an aggressive driver?
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Avoid talking on your cell phone.
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Be realistic about your travel time.
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Keep your following distance reasonable.
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All of the above.
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3.
To start moving without rolling back, you should:
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partly engage the clutch before you take your right foot off the brake.
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apply the trailer brake hand valve.
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put on the parking brake whenever necessary.
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All of the above.
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4.
If you are being tailgated, you should:
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make quick changes.
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turn on your taillights.
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open up room in front of you.
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increase your speed very gradually.
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5.
The minimum amount of tread for rear tires is:
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1/32 of an inch
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1/64 of an inch
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2/32 of an inch
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1/8 of an inch
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6.
When more cargo is piled up in a truck, the center of gravity moves:
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higher up from the road.
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to the right side of the truck.
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closer to the ground.
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to the left side of the truck.
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7.
When backing a trailer, you should turn the steering wheel to the right to make the trailer go left (or vice versa). Once the trailer starts to turn, you should:
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turn the wheel the other way to follow the trailer.
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turn the wheel more in the direction you want to go.
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keep backing up.
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None of the above.
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8.
To avoid becoming an aggressive driver you should:
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give other drivers your full attention.
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speed up if you think you’re going to be late.
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give other drivers the benefit of the doubt.
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make gestures to other drivers.
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9.
If your vehicle is hydroplaning, you should:
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stay off the brake.
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speed up.
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put the vehicle in reverse.
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apply the brakes.
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10.
You should test the coupling by:
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locking the pintle hook.
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applying the parking brakes so the rig will not move.
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disconnect the safety chains.
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pulling against the pin of the second semitrailer.
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KY CDL Doubles Triples Test
| Number of questions: | 20 |
| Correct answers to pass: | 16 |
| Passing score: | 80% |
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