CDL GENERAL KNOWLEDGE TEST (KY) - PRACTICE TEST
11.
You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
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4/32
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3/32
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1/32
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2/32
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12.
Retarders:
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reduce brake wear.
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reduce the need for using your brakes.
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help slow a vehicle.
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All of the above.
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13.
Which of the following statements about overhead clearance is true?
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The weight of a cargo van changes its height.
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If the road causes your vehicle to tilt, you should drive a little closer to the side of the road.
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You should assume the heights posted at bridges and overpasses are correct.
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All of the above.
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14.
Cargo should be properly covered:
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to block your view or someone else’s.
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to protect people from spilled cargo.
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to protect the weather from the cargo.
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All of the above.
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15.
The safety relief valve is located:
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on the dashboard.
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in the front brake.
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in the first tank the air compressor pumps air to.
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on each end of the vehicle's axles.
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16.
When you use mirrors while driving on the road, you should:
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only use one mirror.
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never look back and forth between the mirrors and the road ahead.
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check quickly.
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focus on the mirrors for a long time.
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17.
If your ABS malfunctions:
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you should immediately come to a complete stop.
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you still have normal brake functions.
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the service brake will not work.
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the parking brakes will not work.
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18.
Name two causes of tire fires.
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Under-inflated tires and dual tires that touch
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Driver smoking and poor ventilation.
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Excessive braking
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Mismatched tires and road debris.
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19.
During a pre-trip inspection, to check your lights you should:
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turn off the engine, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
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check the yellow malfunction lamps on the instrument panel.
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with the engine running, turn on the headlights and 4-way emergency flashers, and get out of the vehicle.
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with the engine running, put the vehicle in a forward gear and turn on the headlights.
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20.
When you check your tires, you should look for all of the following EXCEPT:
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Tread separation
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Dual tires that come in contact with parts of the vehicle
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Mismatched sizes
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Tires from different manufacturers
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