AK CDL PRACTICE TEST - GENERAL KNOWLEDGE
41.
Hydroplaning:
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only occurs at speeds above 55 mph.
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is more likely to occur when tire tread is in good condition.
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is more likely when tire pressure is low.
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42.
If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
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5, 25 and 50 feet
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5, 50 and 500 feet
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10, 100 and 200 feet
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43.
When driving at night you should dim your lights when following another vehicle within:
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100 feet.
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1 mile.
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500 feet.
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44.
In coming down steep downgrades, you should:
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select an appropriate speed.
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go slowly enough so your brakes don't get too hot.
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All of the above.
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45.
Emergency equipment is:
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only required when transporting hazardous materials.
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required.
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optional.
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46.
Name two causes of tire fires.
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Excessive braking
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Under-inflated tires and dual tires that touch
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Driver smoking and poor ventilation.
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47.
Emergency lines are often coded with the color ___ to keep from getting them mixed up with the service line.
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yellow.
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blue.
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red.
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48.
Which of the following is NOT a correct action in the event of brake failure?
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Weaving from side to side to slow down.
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Looking for an escape route.
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Using the parking brake.
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49.
Which of these is FALSE? The spare tire must:
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be the proper size.
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be properly inflated.
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be approved by the truck manufacturer.
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50.
Air storage tanks:
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hold compressed air for the brakes.
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use parts of the service brake systems to stop the vehicle in a brake system failure.
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pump air into the air storage tanks.
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