MI CDL Practice Test - General Knowledge
41.
The spring brakes come on:
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when you bring the vehicle to a complete stop right away.
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when main air pressure is lost.
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when air pressure in both air brake systems rises to a value set by the manufacturer.
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42.
If you're carrying hazardous materials and are stopped at a truck stop, you should:
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leave the shipping papers on the dashboard in clear view.
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keep the shipping papers with you.
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leave the shipping papers in the driver’s door pouch or on the driver’s seat.
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43.
When driving in very hot weather you should inspect your tires regularly. Why?
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Air pressure increases with temperature.
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The minimum tread depth may vary.
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Hydroplaning is more likely if tire pressure is low.
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44.
Black ice:
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is thick enough that it makes the road look wet.
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is a thin layer that is clear enough that you can see the road underneath it.
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is thick enough that it makes the road look dry.
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45.
Alcohol:
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impairs depth perception.
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does not affect judgement.
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improves reaction time.
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46.
Emergency equipment is:
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required.
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optional.
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only required when transporting hazardous materials.
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47.
If your vehicle catches fire while you are driving, you should:
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immediately open the van or trailer doors.
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park in an open area.
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pull into a service station.
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48.
When backing your vehicle, it's not recommended to:
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back towards the right side.
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use the lowest reverse gear.
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back as slow as possible.
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49.
Overloading can have bad effects on all of the following except:
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Steering
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Exhaust system
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Braking
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50.
If a trailer does not have spring brakes, to keep the trailer from moving you should:
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use the service brakes.
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use wheel chocks.
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park on a slight decline.
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