AR CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
Which of these describes the proper braking technique when driving on a long and steep downgrade?
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Apply the brakes until your speed has been reduced to 5 mph, then release the brakes. When your speed has increased to your safe speed, repeat the previous steps.
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Release the brakes until your speed is 5 mph above your safe speed, then apply the brakes. When your speed has decreased to your safe speed, repeat the previous steps.
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Apply the brakes. When your speed has been reduced to 5 mph below your safe speed, release the brakes. When your speed has increased to your safe speed, repeat the previous steps.
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All of the above.
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32.
To keep the engine cool in hot weather, you should:
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check v-belt tightness by pressing on the belts.
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make sure the engine cooling system has enough water and antifreeze.
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make sure there is enough engine oil.
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All of the above.
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33.
The best way to test the trailer service brakes is to:
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accelerate to the maximum possible speed, then apply the trailer brakes fully.
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put the handbrake on when there are no vehicles around you.
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pull forward quickly, then apply the trailer brakes with your hand control.
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None of the above.
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34.
Longer combination vehicles have the tendency to swing wide on turns. This is called:
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off-tracking.
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jackknifing.
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hydroplaning.
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rollover.
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35.
The minimum tire tread depth for front tires is:
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4/16 inch
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8/32 inch
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2/32 inch
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4/32 inch
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36.
To make sure you always have overhead clearance, you must be aware that ________ may have reduced the clearances since the heights were posted.
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water on the road
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packed snow
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warm temperatures
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the weight of the cargo
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37.
When signaling what you intend to do, you should:
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cancel your signal after you have turned.
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signal continuously.
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signal early.
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All of the above.
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38.
If ABS is not working, you should:
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use the parking brake.
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brake as you always have.
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slow down and use a lower gear.
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put on your 4-way emergency flashers.
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39.
If confronted by an aggressive driver, you should:
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try to stay in front of them.
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make gestures.
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react to gestures.
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ignore gestures
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40.
If a worker is close to the roadway in a work zone, you should:
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drive on the shoulder.
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drive at the posted speed limit.
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reduce your speed below the posted speed limit.
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pull off the road and stop.
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