CDL GENERAL KNOWLEDGE TEST (SC) - PRACTICE TEST
11.
When driving a 60 foot truck at 35 mph in ideal conditions, you should keep at least _______ of space in front of you.
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12 seconds
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5 seconds
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6 seconds
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4 seconds
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12.
Under-loaded front axles can:
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cause the drive wheels to spin easily.
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make the steering axle weight too light to steer safely.
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cause poor traction.
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All of the above.
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13.
If you are carrying a heavy load that is slowing you down, you should:
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keep the vehicle in third gear.
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drive on the shoulder.
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drive in the left lane.
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drive in the right lane.
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14.
The height of the vehicle's center of gravity:
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should only be a concern when driving a vehicle.
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should only be a concern when loading a vehicle.
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should only be a concern when driving in high winds.
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is very important for safe handling.
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15.
When approaching an emergency vehicle stopped on the side of the road with lights flashing, you should:
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move to the lane not next to that of the emergency vehicle.
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speed up.
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yielding the right-of-way by coming to a complete stop.
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stay in the right lane.
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16.
Axle weight is:
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the weight any axle or combination of axles transmits to the ground.
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the maximum safe weight a tire can carry at a specified pressure.
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the loaded weight of a single vehicle.
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the weight of one axle.
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17.
Which of these is FALSE? The spare tire must:
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be approved by the truck manufacturer.
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not be damaged.
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be the proper size.
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be properly inflated.
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18.
Stab braking:
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involves applying the brakes all the way, and releasing them when wheels lock up.
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involves steady pressure on the brake pedal without locking the wheels.
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involves applying the brakes as hard as you can without locking the wheels.
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should never be used.
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19.
What is Gross Vehicle Weight (GVW)?
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The total weight of a vehicle, including that of any trailers.
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The total weight of a single vehicle including its cargo.
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A vehicle's maximum weight rating, specified by its manufacturer.
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None of the above.
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20.
Sleep debt is defined as:
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the amount of sleep you get each night.
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the cumulative effect of not getting enough sleep.
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the accumulated amount of sleep from frequent rest brakes.
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All of the above.
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