1.
Headache racks:
can blind other drivers.
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help you keep weights within legal limits.
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protect you from being hit by your cargo.
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None of the above.
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2.
Most heavy-duty vehicles use:
hydraulic brakes.
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pressure brakes.
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air brakes.
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solid brakes.
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3.
Glad hands are:
warning devices.
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securement devices.
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coupling devices.
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electronic devices.
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4.
During freezing weather, which area is most likely to be slippery after it rains?
Shaded areas.
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Roads that look wet.
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Bridges.
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All of the above.
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5.
What is the minimum tread depth for tires other than front tires?
4/16 inch
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8/32 inch
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2/32 inch
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4/32 inch
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6.
If your trucks has a high center of gravity, which of the following is true for curves?
You should slow down, as your truck can roll over at the posted speed limit for the curve.
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Reduce your speed to a crawl.
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You should travel at the posted speed limit.
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None of the above.
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7.
ABS helps you:
keep the wheels from locking up.
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decrease your overall stopping distance.
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decrease your average speed.
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lock your wheels.
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8.
Which of the following is a common cause of truck fires?
loose fuel connections.
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Short circuits due to loose connections.
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Under-inflated tires and duals that touch.
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All of the above.
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9.
Before driving a vehicle with a dual brake brake system, the driver should:
wait at least 5 minutes before driving.
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allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems.
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wait at least 10 minutes before driving.
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pump the brake pedal 10 times to build pressure.
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10.
When driving a double or triple, you should:
drive in the left lane whenever possible.
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decrease your following distance.
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increase your following distance.
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drive with emergency flashers on.
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