CDL DOUBLES PRACTICE TEST NEBRASKA
11.
At night, when the load on a vehicle extends 4 feet or more beyond the rear of the body, there must be _______ at the end of the load.
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2 fluorescent orange flags
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2 red lights
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2 red flags
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None of the above.
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12.
When you double your speed, the braking distance is:
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the same.
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4 times longer.
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2 times longer.
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3 times longer.
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13.
Doubles and triples are:
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easier to drive than other combination vehicles.
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more likely to turn over than other combination vehicles because of the "crack-the-whip" effect.
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less likely to turn over than other combination vehicles.
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more stable than straight trucks.
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14.
To use the controlled braking method in an emergency, you should:
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apply the brakes as hard as you can without locking the wheels.
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apply the brakes when the wheels lock up.
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pump the brake pedal 3 times.
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apply your brakes all the way, and release the brakes when the wheels lock up.
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15.
When driving a truck with more than 1 trailer, drivers should:
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look far ahead so they can slow down or change lanes when necessary.
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allow more following distance.
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be especially careful in adverse conditions.
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All of the above.
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16.
If coolant has to be added to a system without a recovery tank, you should:
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wait until the engine has cooled before adding coolant.
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turn the radiator cap quickly to the first stop.
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never use thick cloth to touch the radiator cap.
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keep the engine running while adding coolant.
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17.
What is Gross Vehicle Weight?
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The total weight of a single vehicle, including its load
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The total weight of a combination of vehicles excluding the load
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The total weight of a single vehicle, excluding its load
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The total weight of the cargo
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18.
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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19.
You are driving a modern truck with a manual transmission. When going down a hill you should usually:
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downshift after your
speed has already built up.
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shift into neutral and coast.
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use the same gear you would use to go up the hill.
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use a lower gear than would be required to go up the hill.
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20.
When possible, you should park:
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on the roadway.
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so you will be able to pull forward when you leave.
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so you will have to back up when you leave.
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on the shoulder.
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