MD CDL PRACTICE TEST - GENERAL KNOWLEDGE
21.
If your trailer starts to skid, you should:
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release the brakes to get traction back.
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use the trailer hand brake (if you have one) to straighten out the rig.
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accelerate slightly.
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keep the rear of your vehicle close to the curb.
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22.
When driving on a long and/or steep downgrade, drivers should:
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select an appropriate safe speed, and then use a low gear.
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release the clutch.
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accelerate.
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use a low gear and release the brakes.
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23.
When driving on slippery surfaces, you should:
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not pass slower vehicles unless necessary.
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change lanes often.
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make turns as quickly as possible.
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All of the above.
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24.
Weight that is loaded so there is a high center of gravity:
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causes greater chance of rollover.
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makes a vehicle easier to handle.
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reduces the chance that the load will shift to the side or fall off.
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All of the above.
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25.
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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10
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5
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15
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20
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26.
When approaching a vehicle as part of a pre-trip inspection, the driver should look under the vehicle for all of the following except:
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Fresh oil
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Grease
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Coolant
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Windshield wiper fluid
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27.
_______ is the act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others.
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Distracted driving
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Road rage
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Defensive driving
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Aggressive driving
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28.
How can you determine your following distance?
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When the vehicle ahead of you passes a stationary object such as a sign along the road, use the stopwatch on your smartphone to determine how long it takes you to reach that same object.
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Pass a stationary object and count how many seconds it takes the vehicle ahead of you to reach that same object.
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When the vehicle ahead of you passes a stationary object on the side of road, start counting the seconds it takes you to reach that same object.
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None of the above.
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29.
Gross vehicle weight (GVW) is:
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the total weight of the vehicle, including the load and any trailers.
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the value specified by the manufacturer as the loaded weight of a combination vehicle.
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the total weight of a single vehicle and its load.
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None of the above.
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30.
If the vehicle ahead of you is smaller than yours:
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it will take the same amount of time to stop.
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it will usually take longer to stop.
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it can probably stop faster than you can.
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All of the above.
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