What is the manual's basic rule about how fast you may drive?
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A.
Never exceed the posted limit or drive too fast for the conditions Correct
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B.
Match the speed of surrounding traffic even if it exceeds the limit
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C.
Stay within 5 mph of the posted limit at all times
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D.
Follow the posted limit exactly regardless of weather or road conditions
The answer is "Never exceed the posted limit or drive too fast for the conditions"
The basic rule has two halves in one sentence: obey the posted number, and slow further when conditions call for it. Drivers who read the number as the whole rule choose D and never work the conditions clause the same sentence carries.
The traps in the wrong answers
B. Match the speed of surrounding traffic even if it exceeds the limit
The manual bans exceeding the posted limit under any traffic condition; matching faster traffic does not create an exception. This answer treats the flow-of-traffic guideline from interstate driving as an override on the posted number.
C. Stay within 5 mph of the posted limit at all times
The manual gives no plus-or-minus 5 mph tolerance around the sign; only the ceiling and the minimum-speed sign matter. This answer carries over a rule-of-thumb about the range highway patrol tolerates in practice as if the manual printed it.
D. Follow the posted limit exactly regardless of weather or road conditions
The rule adds a second requirement: even at or below the posted number, speed must be reasonable for conditions. This answer reads the posted number as the whole rule and skips the conditions clause the same sentence carries.
This question tests your knowledge of Speed Limits in North Carolina. Source: North Carolina Driver Handbook, "Adjusting Your Speed to Driving Conditions," p.53..
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