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South Dakota Operator License Knowledge Practice Test
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Passing target: 80% (24/30)
Weather, Visibility & EmergenciesStandalone practice
On a highway with a posted limit of 65 mph, you come up behind a snowplow. Its amber lights are on, and it throws up clouds of snow. What is the closest distance that the South Dakota driver manual tells you to follow it?
Blue A approaches white snowplow B on a two-lane highway posted at 65 mph. B throws up a cloud of snow and its amber warning beacon is lit, shown clearly in a larger view of the same snowplow. There is no gap bracket or selected following distance.
Correct answer: 200 feet
Why
Snowplows are wide, often work close to the center line, and can slow or stop with little warning. The snow they throw up can hide the plow and the road ahead. Slow down and give plows as much room as you can.
Verified against South Dakota Driver License Manual · Winter Driving Safety Tips · p. 67
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