SD CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
11.
When an aggressive driver confronts you, you should:
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avoid eye contact.
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return gestures and shouts.
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make eye contact.
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sound your horn and move to the left lane.
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12.
Which of these can cause your vehicle to skid?
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Over steering
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Over acceleration
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Braking any harder than necessary on slippery roads
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All of the above.
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13.
When is it safe to remove the radiator cap?
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Whenever coolant has to be added to the system.
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As soon as you've stopped, as long as the engine is not hot.
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When you can touch the radiator cap with your bare hand.
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It is always safe.
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14.
If you become drowsy while driving, you should:
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take a break.
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drink plenty of coffee.
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open the windows to get some fresh air.
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try to fight it.
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15.
When transporting a load, the cargo should be inspected:
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only after driving.
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after every break you take during your trip.
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by your supervisor.
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by a helper.
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16.
Drivers should use their horn when needed, however they must be aware that using the horn:
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is prohibited on interstate highways.
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can startle other drivers.
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damages your hearing.
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consumes the battery.
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17.
Skids caused by acceleration can usually be stopped by:
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swerving to the left.
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swerving to the right.
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applying the brakes firmly.
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taking your foot off the accelerator.
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18.
The best way to recognize that your trailer has started to skid is:
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by opening the window and feeling the front of the mirror.
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by recognizing tire failure.
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by feeling the brakes come on.
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by seeing it in your mirrors.
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19.
Which of the following is NOT true?
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ABS only comes into play when a wheel would have locked up because of over braking.
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ABS will change the way you normally brake.
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ABS won't compensate for bad brakes.
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ABS won't compensate for poor brake maintenance.
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20.
When you leave your vehicle you should:
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leave the key in the ignition.
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release the parking brake.
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apply the service brake.
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None of the above.
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