South Dakota Motorcycle practice
South Dakota Motorcycle: Alcohol, Drugs & Impairment practice test
Blood alcohol limits, zero-tolerance and implied-consent laws, and how alcohol and drugs — legal or not — affect your driving.
Content reviewed against official driver handbooks · August 12, 2026
16 questions · pass with 13 correct. You get instant feedback and an explanation after every answer.
Choose your level
Up to 20 questions on this topic, with feedback after every answer.
Study questions with answers
12 sample Alcohol, Drugs & Impairment questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
Show all 12 questions with answers
1. About how many hours of riding per day do experienced riders seldom go beyond?
Correct answer: About 6 hours
To limit fatigue, the manual notes that experienced riders rarely attempt more than about six hours of riding in a day.
Source: South Dakota Motorcycle Operator Manual — Fatigue
2. Why does the manual say friends need to step in when someone has had too much to drink?
Correct answer: A person who has had too much cannot make a responsible decision about riding
Someone who has overindulged cannot make a responsible choice, so it is up to others to keep them from a big risk, even though stepping in is uncomfortable.
Source: South Dakota Motorcycle Operator Manual — Step In to Protect a Friend
3. Cannabis is legal for recreational use in some states. Can a rider impaired by cannabis still be convicted?
Correct answer: Yes; riders impaired by cannabis can be convicted and face penalties similar to alcohol
Even where cannabis is legal, riding while impaired by it is not. Impaired riders can face a riding-under-the-influence conviction and similarly harsh penalties.
Source: South Dakota Motorcycle Operator Manual — Cannabis & Motorcycle Operation
4. A South Dakota rider under 21 is convicted of a first zero-tolerance offense (0.02% BAC or more). What penalty does the manual describe?
Correct answer: A Class 2 misdemeanor, a fine, and 30 days without a license
A first zero-tolerance offense is a Class 2 misdemeanor with a fine and a 30-day license loss; a second or later offense brings a 180-day loss.
Source: South Dakota Driver License Manual — Be in Shape to Drive, Alcohol and the Law
5. On a long ride, how often does the manual say to stop and get off the motorcycle?
Correct answer: At least every two hours
Riding tires you faster than driving a car, so take frequent rest breaks: stop and step off the motorcycle at least once every two hours.
Source: South Dakota Motorcycle Operator Manual — Fatigue
6. Can you be arrested for impaired driving in South Dakota if you are not actually driving?
Correct answer: Yes, if you have physical control of the vehicle and your BAC is over the legal limit
The manual says you don't have to be driving: being in physical control of a vehicle with a BAC over the legal limit can lead to arrest.
Source: South Dakota Driver License Manual — Be in Shape to Drive, Alcohol, Other Drugs, and Driving
7. In South Dakota, how is a first DWI offense (0.08% BAC or more) classified?
Correct answer: A Class 1 misdemeanor, with up to a year in jail and at least a 30-day license loss
A first DWI is a Class 1 misdemeanor that can bring a fine, jail of up to one year, or both, and you lose your license for at least 30 days.
Source: South Dakota Driver License Manual — Be in Shape to Drive, Alcohol and the Law
8. Besides how much you drink, how fast you drink and your body weight, which factors does the manual say can push your BAC even higher?
Correct answer: Your sex, physical condition and food intake
The three primary factors are amount, speed of drinking and body weight, but sex, physical condition and food intake are among other factors that can raise BAC further.
Source: South Dakota Motorcycle Operator Manual — Alcohol in the Body, Blood Alcohol Concentration
9. According to the South Dakota driver manual, at what BAC is vision affected for all drivers?
Correct answer: 0.02%
The manual says vision is impacted at a 0.02% BAC for all drivers, and vision is the most important sense used in driving.
Source: South Dakota Driver License Manual — Be in Shape to Drive, Effects of Alcohol and Other Impairing Drugs
10. Can alcohol build up in your body even if you limit yourself to one drink per hour?
Correct answer: Yes, especially for women
The manual cautions that keeping to one drink an hour does not guarantee alcohol won't build up, and this is especially true for women; even a single drink can dull judgment.
Source: South Dakota Motorcycle Operator Manual — Alcohol in the Body, Blood Alcohol Concentration
11. What does a third DWI offense become in South Dakota?
Correct answer: A Class 6 felony
A third offense is a Class 6 felony, punishable by a fine, up to two years in prison and at least a year without a license after release.
Source: South Dakota Driver License Manual — Be in Shape to Drive, Alcohol and the Law
12. Preparing for a group ride, what does the manual say even too much caffeine or some prescription drugs can do?
Correct answer: Hurt your concentration
A group ride takes an alert mind. For some people, excess caffeine or prescription medication can get in the way of concentration.
Source: South Dakota Motorcycle Operator Manual — Group Riding, Preparation
More Motorcycle topics
Practice Alcohol, Drugs & Impairment in another state
Every South Dakota question is written from the official South Dakota driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free