CDL COMBINATION PRACTICE TEST (VT)
11.
A high center of gravity means:
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you are more likely to tip over.
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you'll have better traction.
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a rollover is less likely.
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12.
If your ABS is not working:
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you still have normal brake functions, and should drive and brake as you always have.
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it will slow your truck to a halt and force you to pull over.
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the drive wheels will begin to spin, and you should take your foot off the accelerator.
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13.
Which of these statements about brakes is true?
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The lighter the vehicle, the more heat the brakes absorb to stop it.
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Brake fade does not result from excessive heat.
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None of the above.
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14.
Foundation brakes are used:
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at each wheel.
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only with the front wheels.
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only with the right wheels.
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15.
On front tires, tread should be at least:
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4/32 inch
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4/16 inch
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2/32 inch
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16.
Which of the following is NOT a good rule for using turn signals?
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Put your turn signal on after the turn.
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Cancel your signal after you have turned.
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Signal continuously until you have completed the turn.
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17.
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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18.
Most heavy vehicles require ________ change gears.
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single clutching
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double clutching
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double shifting
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19.
The center of gravity of a trailer should be:
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as low as possible.
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as high as possible.
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at the rear of the trailer.
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20.
If you try to couple when the trailer is too low:
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the tractor may strike and damage the trailer nose.
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the tractor could roll away.
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it might not couple correctly.
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