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South Dakota Impairment practice

Practice 51 South Dakota DMV questions on impairment. Answer interactively below with an instant explanation after every question.

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Example questions & answers

Which of the following is not a typical effect of marijuana on your ability to drive?

A.Reduced ability to focus
B.Faster reaction time✓
C.Impaired night vision
D.Impaired sense of time, speed, and distance

Why: Marijuana impairs your reflexes and judgment, leading to slower, not faster, reaction times. The driver's manual states that drugs affect alertness and vision in ways similar to alcohol, making driving dangerous.

Besides alcohol, what is the second most frequent drug used by drivers who are involved in accidents?

A.cocaine.
B.cold or allergy medications.
C.marijuana.✓
D.pain relievers.

Why: Marijuana is the drug most frequently found in the systems of drivers involved in collisions after alcohol. It significantly impairs the cognitive and motor skills necessary for safe driving.

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