MINNESOTA CDL DOUBLES TRIPLES PRACTICE TEST
11.
Large vehicles take longer to stop when they are:
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empty.
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carrying hazardous materials.
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heavily loaded but not fully loaded.
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fully loaded.
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12.
Your vehicle should be equipped with all of the following except:
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Warning devices for parked vehicles
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Spare electrical fuses
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Instructions
on how to perform a vehicle inspection test
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Fire extinguisher
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13.
The tractor protection valve:
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prevents the trailer from being accidentally released.
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keeps your wheels from locking up when you brake hard.
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keeps air from going out if the air compressor develops a leak.
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keeps air in the brake system should the trailer develop a bad leak.
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14.
When you make a quick lane change, the crack-the-whip effect can turn the trailer over. The crack-the-whip effect is caused by:
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strong wind.
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the rear trailer of a triple.
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worn tire tread.
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rearward amplification.
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15.
Texting while operating a commercial motor vehicle is:
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acceptable if you are contacting your dispacther.
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only allowed at night.
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illegal.
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acceptable if you are contacting your supervisor.
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16.
An alcohol evaporator:
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to hold compressed air.
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used to reduce the chance of the front wheels skidding.
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protects the air brake system from too much pressure.
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is used to reduce the risk of ice in air brake valves and other parts during cold weather.
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17.
Which of these statements about brakes is true?
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To stop, the brake shoes and linings are pushed against the outside of the drum.
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Brake fade does not result from excessive heat.
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The lighter the vehicle, the more heat the brakes absorb to stop it.
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None of the above.
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18.
Cargo should be properly covered:
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to block your view or someone else’s.
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to protect people from spilled cargo.
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to protect the weather from the cargo.
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All of the above.
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19.
Which of the following is a good way to avoid becoming an aggressive driver?
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Avoid talking on your cell phone.
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Be realistic about your travel time.
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Keep your following distance reasonable.
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All of the above.
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20.
Before operating the vehicle, the driver should:
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should not review the vehicle inspection report and immediately try to find any vehicle defects.
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review the last vehicle inspection report.
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rely on the last vehicle inspection and skip the pre-trip inspection.
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None of the above.
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