Impaired Driving & Penalties — South Dakota
South Dakota motorcycle permit practice test: 299 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. Impaired Driving & Penalties: 23 questions.
Blood alcohol limits, drugs and fatigue, licence suspensions, demerit points and fines.
This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.
| Topic / Metric | Value |
|---|---|
| Topic | Impaired Driving & Penalties |
| License test | South Dakota Motorcycle permit test |
| Topic questions | 23 (8% of 299 total) |
| Review status | This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines. |
Official handbook
Not yet verified
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Questions (23)
1. Which of the following is not a factor in how quickly a person’s blood alcohol concentration (BAC) increases?
- The number of drinks consumed
- How fast a person drinks
- How frequently a person drinks ✓
Answer: C. How frequently a person drinks
Choosing how frequently a person drinks is not the factor the manual lists — it names the amount of alcohol, how fast you drink, and body weight as the main things that set BAC. The manual says three primary factors play a major part in determining BAC: how much alcohol you consume, how fast you drink, and your body weight. It adds that sex, physical condition and food intake can push BAC higher too. How often someone drinks isn't on that list. The manual does tie the speed of drinking to accumulation — the faster you drink, the more alcohol builds up, and two drinks in an hour leave at least one behind. So frequency isn't a stated factor, even though the manual never singles it out as irrelevant.
2. Which of the following factors may affect the blood alcohol content (BAC) of a person?
- The amount of alcohol consumed ✓
- The drinker's height
- The temperature outside
Answer: A. The amount of alcohol consumed
The amount of alcohol consumed is one of the factors that affects a person's blood alcohol content. The manual defines BAC as the amount of alcohol in relation to blood in the body, and says the more alcohol in your blood, the greater the impairment. It then names three primary things that play a major part in setting BAC: how much alcohol you consume, how fast you drink, and your body weight. How much you drink is the first of those, so it belongs on the list. Height and the weather are not among the factors the manual gives.
3. Unlike other beverages, alcohol:
- Is absorbed into the bloodstream right away. ✓
- Needs to be digested.
- Doesn’t affect humans.
Answer: A. Is absorbed into the bloodstream right away.
Unlike other beverages, alcohol is absorbed into the bloodstream right away, without needing digestion. The handbook says alcohol enters the bloodstream quickly and, unlike most foods and beverages, does not need to be digested. Within minutes of being consumed it reaches the brain and starts to affect the drinker, mainly by slowing and impairing mental and physical functions. So the thing that sets alcohol apart from other drinks is that it skips digestion and goes straight into the blood, which is why it can hit you so fast.
4. To minimize the potential for fatigue on a long trip, you should:
- Drink coffee.
- Limit your riding per day. ✓
- Play loud music.
Answer: B. Limit your riding per day.
To reduce fatigue on a long trip, limit your riding per day rather than trying to cover too much ground. The manual says riding a motorcycle tires you faster than driving a car, so on a long trip you need to keep the daily workload down. It notes that experienced riders rarely try to ride more than about six hours in a day, and it pairs that with taking frequent rest breaks and protecting yourself from wind, cold, and rain. Keeping the day's riding short is the direct way to cut down how tired you get.
5. Taking over-the-counter medication before riding:
- Is usually fine since over-the-counter medications are never very strong.
- Is acceptable all the time.
- May affect your riding abilities and should be done with caution. ✓
Answer: C. May affect your riding abilities and should be done with caution.
Taking over-the-counter medication before riding may affect your riding abilities and should be done with caution. The manual says many over-the-counter, prescription, and illegal drugs have side effects that increase the risk of riding. It also says alcohol or drugs make people less able to think clearly and perform physical tasks skillfully, and that judgment and decision-making are affected. That means OTC medicine is not automatically harmless for riding. You should treat it with caution because it can change how you think and ride.
6. If you have only one drink before riding:
- You cannot be arrested for drinking and riding.
- Your riding skills will not be affected.
- It can affect your ability to operate a motorcycle. ✓
Answer: C. It can affect your ability to operate a motorcycle.
Even a single drink can affect your ability to operate a motorcycle. The manual says riding is a demanding task that requires attention, judgment, and quick skilled responses. It also states that alcohol degrades clear thinking and skilled riding more than other factors, and that as little as one drink can have a significant effect on performance. That is why the correct choice is that one drink can affect your ability to operate a motorcycle. The manual does not describe one drink as harmless for riding.
7. What can remove alcohol from a person's system?
- Time ✓
- Coffee
- Exercise
Answer: A. Time
Time is what removes alcohol from a person's system; the manual measures elimination in hours. The handbook works through examples where drinks remain in the system after drinking and says the rider needs additional hours to eliminate the alcohol from those remaining drinks before considering riding. That makes elapsed time the factor the manual uses to describe alcohol leaving the body. The other passages discuss throttle trouble and the factors that affect BAC, such as amount consumed, speed of drinking, body weight, sex, physical condition and food intake, but they do not describe a way to remove alcohol besides the hours counted in the examples.
8. How can you get sober after drinking alcohol?
- Wait. ✓
- Drink coffee.
- Exercise.
Answer: A. Wait.
The only way to get sober after drinking is to wait until your body eliminates the alcohol. According to the manual, if you have had too much to drink, you should wait for your body to clear the alcohol and the tiredness that follows. It does not mention coffee or exercise as remedies. The manual emphasizes that alcohol impairment reduces your ability to judge, and the only listed action is to wait it out. So the correct choice is to wait.
9. The human body removes alcohol at a rate of:
- About one drink per hour. ✓
- About two drinks per hour.
- About three drinks per hour.
Answer: A. About one drink per hour.
The human body removes alcohol at a rate of about one drink per hour. The motorcycle manual states that alcohol is generally eliminated from the body at almost one drink per hour. It also explains that blood alcohol concentration depends on how much you drink, how fast you drink, and body weight, and that even drinking at one drink per hour may allow alcohol to build up. The supported rate is therefore roughly one standard drink each hour, not a faster pace. This matters because the manual says alcohol impairs mental and physical functions, and even one drink can affect judgment and ability.
10. The faster you drink alcohol:
- The faster the alcohol is removed from your body.
- The faster the alcohol accumulates in your body. ✓
- The less the alcohol affects your body.
Answer: B. The faster the alcohol accumulates in your body.
Drinking faster means alcohol builds up in your body more quickly. The manual lists how fast you drink as one of the main factors in blood alcohol concentration. It says directly that a quicker drinking pace causes more alcohol to collect in your body. It also notes that alcohol can still build up even at one drink per hour, especially for women, and that even one drink can affect judgment and ability. So speed of drinking is linked to buildup, not to faster removal or a smaller effect.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook