DOUBLES TRIPLES TEST AK - CDL 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 Alaska doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The AK CDL doubles triples test covers the following sections of the Alaska CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this AK CDL practice test now to prepare for the actual test!
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1.
Emergency equipment is:
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only required when transporting hazardous materials.
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optional.
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required.
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2.
An ABS system:
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helps increase a vehicle's stopping power.
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requires a change in the way you brake.
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is a safety anti-skid braking system.
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3.
Which of the following is NOT correct? Anti-lock brakes:
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give drivers more control over the vehicle during braking.
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help drivers avoid skids caused by over braking.
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require drivers to apply the brakes as hard as they can without locking the wheels.
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4.
With the controlled braking method:
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you apply your brakes all the way and release the brakes when the wheels lock up.
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you apply your brakes as hard as possible without locking the wheels.
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you lightly tap the brakes.
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5.
When you make a quick lane change, the crack-the-whip effect can turn the trailer over. The crack-the-whip effect is caused by:
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rearward amplification.
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strong wind.
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the rear trailer of a triple.
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6.
Air brakes:
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are an effective way to stop large and heavy vehicles.
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are prohibited on larger vehicles.
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should be used only when driving on wet roads.
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7.
Which of the following is NOT true?
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ABS won't compensate for bad brakes.
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ABS only comes into play when a wheel would have locked up because of over braking.
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ABS will change the way you normally brake.
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8.
Combination vehicles have __ air lines.
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3
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1
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2
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9.
The center of gravity of a trailer should be:
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at the rear of the trailer.
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as low as possible.
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as high as possible.
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10.
Which of the following is not a sign of fatigue?
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Keeping a steady speed
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Rubbing eyes
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Frequent blinking
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AK CDL Doubles Test
| Number of questions: | 20 |
| Correct answers to pass: | 16 |
| Passing score: | 80% |
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