MO CDL PRACTICE TEST - GENERAL KNOWLEDGE
21.
When driving on wet roads, you should reduce your speed by about:
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one-fifth.
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one-half.
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one-third.
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22.
After a tire has been changed, the driver should stop a short while later to:
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deflate the tire to 10 psi.
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check the tightness of the nuts.
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decrease tire pressure.
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23.
Total stopping distance equals:
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Braking distance + viewing distance
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Perception distance + reaction distance + braking distance
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Perception distance + braking distance
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24.
When driving on a slippery surface, you should do all of the following except:
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adjust braking to conditions.
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keep a shorter following distance.
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not pass slower vehicles unless necessary.
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25.
A hazard is:
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Something you can easily avoid.
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A dangerous material.
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Any road user or road condition that is a possible danger.
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26.
When approaching an emergency vehicle stopped on the side of the road with lights flashing, you should:
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move to the lane not next to that of the emergency vehicle.
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speed up.
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stay in the right lane.
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27.
When you pull off the road and stop, you should:
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use the taillights.
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turn on the 4-way emergency flashers.
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flash your brake lights.
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28.
If the drive wheels begin to spin, you should:
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take your foot off the accelerator.
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apply your brakes all the way.
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accelerate smoothly and change gears as necessary.
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29.
If you smell exhaust fumes in the cab, you should:
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stop immediately.
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open the windows.
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remember to conduct a post-trip inspection.
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30.
While driving at night, use __________ when it is safe and legal to do so.
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interior lights
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high beams
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low beams
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