CDL DOUBLES PRACTICE TEST TENNESSEE
11.
If the low air pressure warning light comes on, you should:
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call for help.
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continue to drive normally.
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set the parking brake.
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stop immediately.
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12.
Older trailers do not have spring brakes. If the air supply leaks away:
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the trailer will stop normally.
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there will be no emergency brakes.
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the ABS won't work properly.
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All of the above.
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13.
Weight that is loaded so there is a high center of gravity:
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makes a vehicle easier to handle.
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reduces the chance that the load will shift to the side or fall off.
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causes greater chance of rollover.
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All of the above.
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14.
Glad hands are:
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coupling devices.
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securement devices.
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warning devices.
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electronic devices.
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15.
Retarders:
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reduce the danger of slipping.
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reduce braking distance.
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improve gas mileage.
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help slow a vehicle, reducing the need for using brakes.
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16.
When you double your speed, the braking distance is:
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4 times longer.
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2 times longer.
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the same.
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3 times longer.
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17.
Which of the following is not a sign of fatigue?
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Keeping a steady speed
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Rubbing eyes
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Frequent blinking
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Yawning repeatedly
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18.
To prevent rollover, you should:
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drive faster on ramps and off ramps.
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drive slower around corners.
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drive in the left lane whenever possible.
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All of the above.
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19.
Most heavy trucks with manual transmissions require ____ to change gears.
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triple clutching
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single clutching
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double clutching
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None of the above.
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20.
In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
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assume the car left the roadway and change lanes as normal.
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ease into the other lane slowly so the other car can get out of the way.
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wait until you are sure the car isn't in your blind spot.
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None of the above.
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