Impaired Driving & Penalties — Missouri
Missouri motorcycle permit practice test: 340 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: 19 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 | Missouri Motorcycle permit test |
| Topic questions | 19 (6% of 340 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 (19)
1. The human body rids itself of about one alcoholic drink per hour. If a person consumes seven drinks in three hours, how many drinks likely remain in that person’s system three hours after their final drink?
- Two
- Three
- Four ✓
- Five
Answer: C. Four
2. In regards to drinking and riding, many penalties are:
- Severe. ✓
- Up to a judge to decide.
- Not too harsh.
- Optional.
Answer: A. Severe.
Many penalties for drinking and riding are severe, and most states now impose them as mandatory penalties. The manual explains that first offenders once expected a small fine and alcohol classes, but the laws of most states now impose stiff penalties on drinking operators. It also says those penalties are mandatory, so judges must impose them rather than choosing whether to. The listed consequences include mandatory license suspension, severe fines, higher insurance rates, and community service. That support makes the point that the penalties are severe, not light or optional.
3. If drinking alcohol, you should:
- Decide if you are still fit to ride based on how you feel after you finish drinking.
- Set a limit beforehand so you can still safely ride.
- Not ride. ✓
- Not be concerned about your riding abilities if you feel fine.
Answer: C. Not ride.
If you are drinking alcohol, the right choice is not to ride. The manual treats drinking and riding as a choice between not drinking and not riding. It says setting a limit or pacing yourself are poor alternatives because alcohol affects your judgment early. Even when you try to drink in moderation, you may not realize how much your skills have dropped. If you have not controlled your drinking, the manual says you must avoid riding, leave the motorcycle, arrange another way home, or wait until the alcohol and its after-effects are gone. That supports the answer: do not ride.
4. After drinking, what lessens the effects of alcohol?
- Exercise
- Coffee
- Time ✓
- Food
Answer: C. Time
Time is what lessens the effects of alcohol; your body has to eliminate it. The manual says alcohol is eliminated from the body at a rate of almost one drink per hour, and it tells riders who have exceeded their limit to wait until their system clears the alcohol and its after-effects. That makes time, not a quick fix, the listed way for the effects to wear off. The manual also notes that even after waiting an hour per drink, side effects may still remain, so the point is to allow the body time rather than try to speed things up.
5. To prevent getting fatigued on a long ride, you should do all of the following, except:
- Dress warmly.
- Limit the distance traveled in a day.
- Take frequent rest breaks.
- Take artificial stimulants. ✓
Answer: D. Take artificial stimulants.
To prevent fatigue on a long ride, do not take artificial stimulants; the other listed habits are recommended fatigue fighters. The motorcycle manual says riding is more tiring than driving, so you should protect yourself from wind, cold, and rain by dressing warmly, limit how far you ride in a day, and stop for frequent rest breaks. It separately warns against drinking or using drugs. Artificial stimulants are specifically described as often causing extreme fatigue or depression when they wear off, leaving a rider unable to concentrate. That makes taking stimulants the exception among the choices, not a fatigue-prevention method.
6. If your friend has been drinking alcohol, it is a good idea to do any of the following, except:
- Arrange for a safe ride home for your friend.
- Occupy your friend with activities to distract them from drinking.
- Keep your friend from leaving until they are sober.
- Allow your friend to ride their motorcycle. ✓
Answer: D. Allow your friend to ride their motorcycle.
The exception is allowing your friend to ride their motorcycle. The manual says that when a friend has been drinking, you should step in: involve them in other activities to slow the drinking, keep them there so they do not get on the motorcycle, arrange another way home, and wait until alcohol has left their system. Letting them ride goes against that guidance because alcohol affects judgment and riding skills. The other choices are protective steps the manual describes, so allowing the friend to ride is the one that does not belong.
7. Impairment from drinking alcohol occurs:
- Well below the legal limit. ✓
- Once reaching the legal limit.
- Just above the legal limit.
- Well above the legal limit.
Answer: A. Well below the legal limit.
Impairment from drinking alcohol begins well below the legal limit. The manual says the real question is not whether you are legally intoxicated, because your judgment and riding skills start to slip well below the legal limit. The stats passage backs this up: riders with BAC from 0.01 to 0.07 percent, meaning just a drink or two, already showed that a small amount is enough to impair riding skills. So the trouble starts earlier than the legal cutoff, not at it.
8. If you wait an hour per alcoholic drink before you ride your motorcycle:
- You cannot be arrested for drinking and riding.
- Your skills will not be affected.
- Side effects may still remain. ✓
- You will be fine as long as you ride slowly.
Answer: C. Side effects may still remain.
Even if you wait an hour per alcoholic drink, side effects may still remain. Waiting one hour for each drink is not a guarantee that alcohol is gone. The manual's own answer says that drinking may leave side effects that continue. Another page explains that alcohol can still build up even when you have about one drink per hour, and that one drink can affect abilities and judgment. So the fact that an hour has passed for each drink does not mean you are clear to ride.
9. When consumed together, the effects of alcohol and drugs:
- Can be more pronounced than when either is consumed alone. ✓
- Are less dangerous than when either is consumed alone.
- Are usually minimal.
- Often balance out.
Answer: A. Can be more pronounced than when either is consumed alone.
When alcohol and drugs are consumed together, their effects can be more pronounced than when either is consumed alone. The manual states plainly that alcohol and drugs together are more dangerous than either one by itself. It explains that alcohol and drugs impair judgment, clear thinking, and the physical skills needed to ride, and that impairment can begin before legal limits are reached. Since each substance already reduces your ability to ride well, the manual's warning about combined effects supports the answer that the effects can be stronger together than alone.
10. In New Hampshire, a person who is age 21 or older with a minimum blood alcohol concentration (BAC) of ______ is considered legally intoxicated.
- 0.02 percent
- 0.04 percent
- 0.06 percent
- 0.08 percent ✓
Answer: D. 0.08 percent
For an adult age 21 or older in New Hampshire, the legal intoxication threshold is a blood alcohol concentration of 0.08 percent. The manual states that in all but one state, an adult with a BAC of 0.08% or above is considered intoxicated, and it names Utah as the single exception with a lower 0.05% threshold. Since New Hampshire is not that exception, the adult limit is the 0.08% figure. The manual also notes that lower limits, from 0.00 to 0.02% depending on the state, apply only to operators under age 21, so a rider 21 or older is measured against the higher number.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook