CDL DOUBLES TRIPLES PRACTICE TEST MICHIGAN
11.
Rough acceleration can cause:
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mechanical damage.
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damage electrical and brake lines.
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tire damage.
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12.
If you become drowsy while driving, you should:
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take a break.
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open the windows to get some fresh air.
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drink plenty of coffee.
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13.
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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stay in the left lane.
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14.
"Bobtail" tractors are:
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tractors with a tank.
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tractors without semitrailers.
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tractors with two trailers.
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15.
With a dual air brake system:
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each system shares air tanks.
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each system has its own air tanks, hoses and lines.
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each system shares the same lines and hoses.
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16.
After an accident, an improper use of flares could cause:
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a fire if spilled fuel is on the ground.
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the springs to put on the brakes.
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air pressure to build from 50 to 100 psi within 2 minutes.
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17.
If you doubt you have enough space to pass under a bridge, you should:
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drive faster.
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turn on your headlights.
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go slowly.
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18.
With low beams, drivers can see ahead about:
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100 feet
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250 feet
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15 feet
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19.
You are driving a double. Before entering traffic, you should:
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make sure you have a large enough gap before entering or crossing traffic.
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turn on your headlights.
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assume there is enough room to merge into traffic.
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20.
When you turn suddenly, which trailer is most likely to turn over?
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The last trailer of triples
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The rear trailer of doubles
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The front trailer
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