CDL GENERAL KNOWLEDGE TEST (ND) - PRACTICE TEST
11.
Which of the following statements about engine overheating is true?
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Low speeds create more heat for the engine.
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You should never shut off an overheated engine until it cools.
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You should never remove the radiator cap or any part of the pressurized system until the system has cooled.
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None of the above.
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12.
The minimum tire tread depth for all tires other than front tires is:
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2/32 inch
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1/32 inch
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6/32 inch
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4/32 inch
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13.
What should you do if your vehicle starts hydroplaning?
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Release the accelerator and push in the clutch to let the wheels turn freely.
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Apply the brakes and countersteer to regain control of the vehicle.
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Leave the road completely.
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Accelerate slightly, then push in the clutch to slow down.
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14.
What should you do when confronted by an aggressive driver?
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Ignore gestures
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Hold-your-own in your travel lane
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Challenge them by speeding up
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Make eye contact
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15.
Suspension system defects include:
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steering wheel play of more than 10 degrees.
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cracked or broken spring hangers.
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rust around wheel nuts.
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All of the above.
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16.
The safety relief valve is located:
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on each end of the vehicle's axles.
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in the first tank the air compressor pumps air to.
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in the front brake.
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on the dashboard.
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17.
In vehicles with air brakes, the air compressor governor:
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controls when the air storage tanks will pump air into the air compressor.
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controls how much air the air compressor will pump into the air storage tanks.
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controls when the air compressor will pump air into the air storage tanks.
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None of the above.
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18.
How far should you scan ahead when driving?
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One block at lower speeds
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A quarter of a mile at highway speeds
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12-15 seconds
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All of the above.
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19.
If another driver is following you too closely, you should:
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immediately pull over to the side of the road.
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turn on your warning flashers.
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decrease your following distance.
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None of the above.
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20.
What is the minimum tread depth for front tires?
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1/2 inch
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4/32 inch
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3/8 inch
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1/32 inch
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