1.
Right after it starts to rain, the road is very slippery. Why?
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Because black ice may form on the road.
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Because rain is very slippery.
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Because the water mixes with oil left on the road by vehicles.
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None of the above.
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2.
If you are caught in strong winds, you should:
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keep a strong grip on the steering wheel and slow down or pull off the roadway.
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speed up while keeping a strong grip on the steering wheel.
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immediately take your foot off the accelerator.
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None of the above.
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3.
Which of the following will NOT help you prevent rollover?
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Driving slowly around turns.
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Using the controlled braking method.
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Keeping the cargo as close to the ground as possible.
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All of the above.
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4.
When driving a double or triple, you should:
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drive in the left lane whenever possible.
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increase your following distance.
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decrease your following distance.
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drive with emergency flashers on.
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5.
The posted speed limit for a curve:
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is safe for trucks or buses, but it may be too fast for cars.
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is safe for all vehicles.
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is optional and may be exceeded.
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may be too fast for many trucks or buses.
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6.
When you turn suddenly while pulling doubles, which trailer is most likely to turn over?
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The rear trailer is twice as likely to turn over as the tractor.
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The front trailer is twice as likely to turn over as the tractor.
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All trailers are equally likely to turn over.
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None of the above.
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7.
Most heavy-duty vehicles use:
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solid brakes.
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hydraulic brakes.
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air brakes.
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pressure brakes.
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8.
Which of the following statements is true?
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There is no way that short circuits due to damaged insulation can cause a vehicle fire.
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Poor cargo ventilation is a common cause of fire.
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Carrying a properly charged and rated fire extinguisher will help prevent fires.
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Under-inflated tires will NOT cause a vehicle fire.
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9.
When driving at night, you should use ________ when you can.
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emergency flashers
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indicator lights
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high beams
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low beams
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10.
Too little weight on the driving axles can cause:
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poor visibility.
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longer stopping distances.
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mechanical damage.
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poor traction.
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