CDL PRACTICE TEST - GENERAL KNOWLEDGE (NEW HAMPSHIRE)
21.
On front tires, tread should be at least:
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2/32 inch
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4/32 inch
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1/16 inch
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4/16 inch
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22.
When approaching and driving through a work zone, you should:
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use your 4-way emergency flashers or brake lights to warn drivers behind you.
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observe the posted speed limits.
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slow down.
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All of the above.
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23.
______ is operating a motor vehicle with the intent of doing harm to others.
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Road rage
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Aggressive driving
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Excessive driving
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All of the above.
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24.
To test your hydraulic brakes for leaks:
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apply firm pressure to the brakes for five seconds, then pump them three times.
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turn off the engine and and listen for leaks.
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pump the brake pedal three times, then hold it down for five seconds.
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None of the above.
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25.
If your vehicle catches fire while you are driving, you should:
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park in an open area.
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increase your speed to put out the fire.
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immediately open the van or trailer doors.
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pull into a service station.
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26.
When traction is poor, as in rain or snow, you should speed up very gradually. If you don't:
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you could lose control.
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you will exceed the speed limit.
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the brakes will not work.
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brake pressure will push the rod out.
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27.
The height of a vehicle's center of gravity is important for safe handling. Why?
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Trucks with a high center of gravity can roll over at the posted speed limit for a curve.
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A high center of gravity means you are less likely to tip over.
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Trucks with a high center of gravity have better traction.
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All of the above.
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28.
To keep cargo from shifting or falling off, cargo should have at least one tie-down for every ___ feet of cargo.
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5
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15
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10
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20
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29.
Drivers should inspect their cargo and its securing devices within the first _______ after beginning the trip.
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25 miles
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50 miles
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100 miles
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15 miles
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30.
Do NOT use a B:C fire extinguisher on:
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grease fires.
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gasoline fires.
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electrical equipment fires.
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wood fires.
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