MN CDL DOUBLES TRIPLES TEST - PRACTICE TEST
11.
Move-over laws require drivers to _________ when approaching an emergency vehicle stopped on the roadside or a work zone.
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slow down and change lanes
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stop
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change direction
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sound their horn
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12.
If your trailer starts to skid, you should:
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release the brakes.
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pump the brakes.
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steer in the opposite direction.
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lock the brakes.
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13.
When backing, you should:
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only use mirror on the driver's side.
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back and turn toward the right side whenever possible.
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use the mirrors on both sides.
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back quickly.
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14.
If a load is placed on one side of the trailer:
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a rollover is more likely.
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the steering axle weight will be too light to steer safely.
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making turns may be easier.
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your brakes won't work.
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15.
When making a turn you should:
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signal early.
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turn the signal off before entering the turn.
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make gestures to get the attention of other drivers.
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honk your horn.
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16.
If the drive wheels begin to spin, you should:
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accelerate smoothly and change gears as necessary.
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wait 4-5 seconds before applying the accelerator.
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take your foot off the accelerator.
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apply your brakes all the way.
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17.
If driving a heavy vehicle, you should:
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stay in the right lane.
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try to pass other vehicles going uphill.
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avoid braking.
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stay in the left lane.
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18.
The trolley valve should be used only:
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to prevent skids.
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in an emergency.
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to test the trailer brakes.
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in driving.
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19.
Which of the following is most likely to roll over?
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The rear trailer of a triple
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The rear trailer of a double
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The front trailer of a double
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The middle trailer of a triple
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20.
When going down grades, you should:
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shift up.
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rely solely on engine braking to reduce your speed.
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put the transmission in Neutral.
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downshift to a lower gear.
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