GENERAL KNOWLEDGE CDL TEST NEBRASKA - PRACTICE TEST
41.
Two of the most common causes of tire fires are:
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Loose lug nuts and duals that touch.
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Over-inflated tires and duals that touch.
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Driver smoking and bleeding tar.
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Duals that touch and under-inflated tires.
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42.
When signaling what you intend to do, you should:
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cancel your signal after you have turned.
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signal continuously.
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signal early.
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All of the above.
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43.
A low air pressure warning signal:
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is required on all vehicles without air brakes.
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is required on vehicles with air brakes.
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is optional on vehicles with air brakes.
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None of the above.
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44.
A bridge formula permits less maximum axle weight for axles that:
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are closer together
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have poor weight balance
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have a high center of gravity
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are further apart than normal
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45.
In the event of brake failure you should NOT:
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pump the brakes.
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shift up.
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downshift.
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use the parking brake.
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46.
Which of the the following statements about fatigued or drowsy driving is true?
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Fatigued drivers are usually more alert because they are aware risk of being involved in an accident is higher.
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Most people are less alert between 12 pm and 3 pm.
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Fatigued drivers may be slower in making critical decisions.
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All of the above.
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47.
Air brakes:
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are prohibited on larger vehicles.
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can improve fuel efficiency.
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are an effective way to stop large and heavy vehicles.
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should be used only when driving on wet roads.
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48.
Drivers should not assume that the heights posted at bridges and overpasses are correct. Why?
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The weight of a cargo van changes its height.
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Some roads can cause a vehicle to tilt.
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The bridge/overpass may have been rebuilt since the heights were originally posted.
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Packed snow or repaving may have reduced the clearances since the heights were posted.
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49.
When backing a truck you should:
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always rely on your mirrors.
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look straight ahead.
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get out and walk around the vehicle before you begin to back.
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back and turn toward the right side.
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50.
What is an important thing to remember about emergency braking?
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The more heavily loaded semitrailer trailer should be in the rear.
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Your natural response (hitting the brakes) is never the right solution.
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You should never use stab braking.
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Pushing down on the brake pedal as hard as you can will only keep the wheels locked up and cause a skid.
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