COMBINATION TEST NEBRASKA - PRACTICE TEST
11.
Most hydraulic brake failures occur for one of two reasons, one of which is:
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loss of hydraulic pressure.
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excessive downshifting.
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relying too much on the engine braking effect.
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driving in cold weather.
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12.
The crack-the-whip effect:
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can cause problems for drivers coming toward you.
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the ends of some vehicles to drag.
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can cause a vehicle to tilt.
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can turn the trailer over.
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13.
What is a pull up when referring to truck driving?
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When a driver stops and pulls forward to get a better position.
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A specific maneuver used to decelerate smoothly in the exit lane.
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A driving maneuver used to pull your vehicle over to the side of the road and stop.
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Using the speedometer to know when to shift up.
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14.
If you are feeling sleepy, you should:
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slow down and drive on the shoulder of the road.
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pull off the road and rest or take a nap.
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increase your speed to get to the destination quicker.
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None of the above.
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15.
When the tractor protection valve closes, the trailer _______ brakes will come on.
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hand
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parking
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emergency
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service
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16.
Which of the following is NOT TRUE? When you drive a tractor-trailer combination with ABS, you should:
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use only the braking force necessary to stop safely.
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monitor your tractor and trailer as you slow down, and if it is safe to do so, back off the brakes to stay in control.
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brake the same way, regardless of whether you have ABS on the tractor, the trailer, or both.
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drive slower to keep your vehicle in a straight line.
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17.
Transporting hanging meat requires special attention. Why?
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Because refrigerated trucks have less traction.
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Because you have to drive fast to get it delivered fresh.
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Because hanging meat can be an unstable load with a high center of gravity.
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All of the above.
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18.
To prevent a rollover, you should keep the cargo as close to the ground as possible and:
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keep the vents clear so they work correctly.
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make sure that the release arm is in the engaged position.
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go slowly around turns.
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keep an eye on your tires.
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19.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Speed control
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Weight limits
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Steering
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Braking
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20.
Before leaving your vehicle unattended, you should:
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Apply the parking brake.
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Remove the keys.
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Chock the wheels.
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All of the above.
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