When traveling more slowly than 40 mph on a limited-access highway, you should:
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Sound your horn to warn others.
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Use your high beams to warn others.
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Use your hazard flashers to warn others.
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None of the above.
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Explanation
If you must travel more slowly than 40 mph on a limited-access highway, you should turn on your four-way flashers to warn drivers behind you. Moving significantly slower than the flow of traffic is dangerous and increases the risk of rear-end collisions. Always signal your intentions clearly-whether by using turn signals or emergency lights-so that other drivers can react appropriately. Many crashes happen because one driver does something unexpected, so clear communication is key to staying safe.
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🟡 This question is moderately difficult — 20.4% of our users answer it incorrectly.
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