AIR BRAKES PRACTICE TEST - VIRGINIA
11.
How can you tell if your vehicle is equipped with ABS (anti-lock braking system)?
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Trucks, buses, trailers, and converter dollies built after 1998 are required to have ABS.
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ABS is required on all vehicles manufactured on or after 2000.
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There is no way to tell, ABS is still optional on all vehicle types.
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12.
Passive railroad crossings:
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should never be crossed using a CMV.
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have at least one traffic control device.
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do not have traffic control devices.
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13.
Your mirrors should be adjusted so that:
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no part of the vehicle is visible in the mirror.
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a part of the vehicle is visible in the mirror.
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the rear of the vehicle is visible in the mirror.
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14.
When driving a 60 foot truck at 35 mph in ideal conditions, you should keep at least _______ of space in front of you.
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6 seconds
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12 seconds
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5 seconds
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15.
When you make a quick lane change, the crack-the-whip effect can turn the trailer over. The crack-the-whip effect is caused by:
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the rear trailer of a triple.
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rearward amplification.
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strong wind.
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