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South Dakota Operator License Knowledge Practice Test
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Passing target: 80% (24/30)
Vehicle Safety, Documents & TowingStandalone practice
On a rural highway, you see an orange triangle with a red border on the back of a farm tractor ahead of you. What does this emblem tell you?
Correct answer: The vehicle travels slowly, usually no faster than 25 mph, so you close on it fast
Why
At highway speed, you close very fast on a vehicle that moves at 25 mph or less, so the triangle gives you an early warning. Expect it on farm machinery, construction equipment and horse-drawn wagons, mostly in rural areas. The operator of farm machinery may not hear you come near, so pass with care and only where it is safe.
Verified against South Dakota Driver License Manual · Slow-Moving Vehicles · p. 65, 36
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