SC CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
11.
When driving on slippery roads, you should NOT:
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pass slower vehicles unless necessary.
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brake any harder than necessary.
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use the speed retarder.
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All of the above.
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12.
If you smell exhaust fumes in the cab, you should:
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remember to conduct a post-trip inspection.
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open the windows.
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stop immediately.
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wait for the next stop, then inspect your vehicle.
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13.
What is an important thing to remember about emergency braking?
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You should never use stab braking.
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The more heavily loaded semitrailer trailer should be in the rear.
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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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Your natural response (hitting the brakes) is never the right solution.
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14.
A driver waiting for too long at a stop could be a sign of:
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an aggressive driver.
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a blind driver.
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a disabled driver.
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an impaired driver.
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15.
Empty trucks require greater stopping distances because:
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fully loaded trucks have less traction.
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they are usually equipped with power brakes.
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empty vehicles have less traction.
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All of the above.
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16.
Distracted driving can cause collisions. Which of the following can distract your attention while you are driving?
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Driving below the speed limit.
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Listening to music.
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Talking to passengers.
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All of the above.
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17.
Which of the following is not a rule for using turn signals?
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Signal continuously
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Cancel your signal after you have turned
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Don't signal unless another vehicle is behind you
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Signal early
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18.
Most heavy-duty vehicles use:
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pump-the-brake systems.
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dual air brake systems.
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triple air brake systems.
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single air brake systems.
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19.
Gross vehicle weight (GVW) is:
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the total weight of the vehicle, including the load and any trailers.
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the value specified by the manufacturer as the loaded weight of a combination vehicle.
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the total weight of a single vehicle and its load.
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None of the above.
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20.
Brake fade results from:
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excessive speeding.
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excessive use of the service brakes.
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excessive wear.
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excessive smoke.
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