ALASKA CDL DOUBLES TRIPLES PRACTICE TEST
11.
The earliest way to recognize that your trailer has started to skid is:
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by releasing the brakes.
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by checking the jackknife sensor.
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by checking your mirrors.
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12.
If you must stop on a one-way or divided highway, place your warning devices:
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10 feet, 100 feet, and 200 feet toward the approaching traffic.
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100 feet, 200 feet, and 300 feet toward the approaching traffic.
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10 feet, 50 feet, and 150 feet toward the approaching traffic.
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13.
For a cargo fire in a box trailer, you should:
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open the doors immediately and use the fire extinguisher.
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keep the doors shut.
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wait 10 minutes before opening the doors.
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14.
Which of the following statements about backing heavy vehicles is true?
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Back to the right side so that you can see better.
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You should avoid backing whenever you can.
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Always back as quickly as possible.
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15.
You can release dolly brakes:
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by opening the air tank petcock.
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by closing the emergency line valve.
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by opening the service line valve.
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16.
After an accident, an improper use of flares could cause:
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a fire if spilled fuel is on the ground.
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the springs to put on the brakes.
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air pressure to build from 50 to 100 psi within 2 minutes.
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17.
When driving at night, you should use ________ when you can.
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high beams
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low beams
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emergency flashers
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18.
Over-length loads:
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require special transit permits.
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may require special equipment such as "wide load" or flags.
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All of the above.
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19.
Doubles and triples:
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can be stopped suddenly due to their weight.
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can be turned suddently due to the low center of gravity.
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can't be turned suddenly.
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20.
What can cause poor traction?
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Overloading the truck.
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Too little weight on the driving axles.
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Too much weight on the steering axle.
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