CDL DOUBLES TRIPLES PRACTICE TEST MINNESOTA
11.
Alcohol:
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improves muscle coordination.
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improves reaction time.
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does not affect judgement.
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impairs depth perception.
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12.
When the temperature drops:
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bridges will not freeze.
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bridges will freeze before the road will.
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bridges usually freeze after other parts of the roadway.
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None of the above.
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13.
If you must drive slowly, how should you alert following drivers?
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Help them out by signaling when it is safe to pass
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Turn on your taillights
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Flash your brake lights
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Use your emergency flashers if it is legal
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14.
When driving in hot weather, drivers should inspect tires:
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every 3 hours or every 75 miles.
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every 2 hours or every 100 miles.
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every 4 hours or every 200 miles.
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every hour or every 50 miles.
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15.
Which of the the following statements about fatigue is true?
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Fatigue impairs your vision and judgment.
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Fatigued driving is one of the leading causes of accidents.
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Fatigue may cause you to not see and react to hazards.
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All of the above.
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16.
When driving at night, you should use ________ when you can.
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high beams
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emergency flashers
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low beams
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indicator lights
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17.
When possible, you should park:
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so you will be able to pull forward when you leave.
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on the shoulder.
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on the roadway.
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so you will have to back up when you leave.
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18.
Empty trucks require _____ stopping distances because empty vehicles have ______ traction.
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greater; less
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less; more
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less; less
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greater; more
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19.
You are driving a heavy vehicle with a manual transmission, and you have to stop on the shoulder while driving on an uphill grade. When putting your vehicle back in motion up the grade, you should:
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use the parking brake to hold the vehicle until the clutch engages.
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shift down to a speed that you can control without using the brakes.
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partly engage the clutch before you take your right foot off the brake.
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keep the clutch slipping while slowly accelerating.
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20.
When inspecting the coupling, how much space should there be between the upper and the lower fifth-wheel?
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None.
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½ inch
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It depends on the trailer
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It depends on the load
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