CDL PRACTICE TEST - GENERAL KNOWLEDGE (NORTH CAROLINA)
41.
When driving in heavy rain, your brakes will get wet. Water in the brakes can cause:
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lack of braking power.
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the brakes to apply unevenly.
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wheel lockups.
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All of the above.
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42.
Which of the following statements about stopping distance is true?
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Reaction distance is the distance you will continue to travel, in ideal conditions, before you hit the brakes.
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Braking distance is the distance your vehicle will travel, in ideal conditions, while you are braking.
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Perception distance is the distance your vehicle travels, in ideal conditions, from the time your eyes see a hazard until your brain recognizes it.
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All of the above.
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43.
Which of the following vehicles is most likely to turn over?
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65 ft. conventional double
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Triple trailer
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3 axle tractor semitrailer
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5 axle tractor semitrailer
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44.
The total weight of a single vehicle including its load is called:
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Gross Vehicle Rating (GVR)
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Gross Vehicle Weight Rating (GVWR)
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Gross Combination Weight (GCW)
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Gross Vehicle Weight (GVW)
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45.
Tar in the road pavement:
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increases the ability to maintain traction on a vehicle.
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frequently rises to the surface in very hot weather.
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can slow down your vehicle.
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does not affect the road surface.
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46.
Why should you put the starter switch key in your pocket during the pre-trip inspection?
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So you don't lose it.
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So no one moves the vehicle while you are inspecting underneath it.
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You will need it to inspect the trailer.
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All of the above.
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47.
What should you look for when checking tires?
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Fabric showing through the tread or sidewall
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Cuts
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Cracked valve stems
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All of the above
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48.
If you experience a tire failure, do NOT:
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apply the brakes as hard as you can.
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when the vehicle has slowed down, brake very gently, pull off the road, and stop.
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hold the steering wheel firmly.
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stay off the brake (unless you're about to run into something).
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49.
If a tire blows out, you should:
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keep driving until you reach the next service station.
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keep a firm grip on the steering wheel and stay off the brake until the vehicle has slowed down.
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fully apply the brakes while holding the steering wheel firmly.
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immediately head for the side of the road.
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50.
Which of the following statements about drivers fixing an engine or changing a tire is true?
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They must park within 5 feet of the roadway.
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Roadway traffic is not a danger to them.
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They often do not pay attention to roadway traffic.
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They usually pay attention to the danger roadway traffic is to them.
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