CDL DOUBLES PRACTICE TEST NEW HAMPSHIRE
11.
Which of the following is NOT true?
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ABS only comes into play when a wheel would have locked up because of over braking.
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ABS won't compensate for bad brakes.
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ABS won't compensate for poor brake maintenance.
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ABS will change the way you normally brake.
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12.
When driving on slippery roads, you should NOT:
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watch far enough ahead to keep a steady speed.
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go slowly.
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try to anticipate stops early.
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use the engine brake.
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13.
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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rearward amplification.
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the rear trailer of a triple.
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worn tire tread.
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14.
Most heavy-duty vehicles use:
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hydraulic brakes.
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air brakes.
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solid brakes.
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pressure brakes.
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15.
The best way to recognize that your trailer has started to skid is:
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by opening the window and feeling the front of the mirror.
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by recognizing tire failure.
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by feeling the brakes come on.
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by seeing it in your mirrors.
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16.
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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150 feet
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17.
When backing, you should:
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back quickly.
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avoid using the mirrors.
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back and turn toward the right side.
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use a helper if possible.
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18.
The service line is also called:
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control line.
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power line.
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cable line.
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brake line.
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19.
If driving a heavy vehicle, you should:
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try to pass other vehicles going uphill.
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avoid braking.
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stay in the right lane.
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stay in the left lane.
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20.
Engine oil pressure should come up to normal within _________ after the engine is started.
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seconds
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five minutes
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ten minutes
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two minutes
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