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Nevada Class C Instruction Permit Practice Test
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Passing target: 80% (20/25)
Regulatory, Lane & Parking SignsStandalone practice
You pass a white rectangular sign that reads SPEED LIMIT 45. The road is dry, and traffic is light. What does the 45 mean?

Correct answer: 45 mph is the highest legal speed there in good conditions
Why
White rectangular signs are regulatory, so you must obey them. Nevada's basic speed rule also applies: you may never drive faster than is reasonable for traffic, weather, and the road surface, even below the posted number. Speed limits are set for normal conditions. Speeding saves little time, but it makes stopping distances longer and crashes more severe.
Verified against Official Nevada Driver Handbook · Regulatory signs · p. 29, 35
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