Impaired Driving & Penalties — Illinois
Illinois motorcycle permit practice test: 81 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: 10 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 | Illinois Motorcycle permit test |
| Topic questions | 10 (12% of 81 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
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Questions (10)
1. Generally, the body eliminates one alcoholic drink per hour. If a person consumed eight alcoholic drinks four hours ago, how many drinks likely remain in their body?
- Two
- Three
- Four ✓
- Five
Answer: C. Four
About four drinks would still be in the person's body. The manual says alcohol is generally cleared at a rate of almost one drink per hour, and it shows the math with worked examples: drinks consumed minus hours elapsed equals what is still in your system. Eight drinks minus four hours of clearing leaves at least four drinks still in the body. The manual uses this arithmetic to make the point that time matters, and it adds that you would need roughly another four hours before the remaining alcohol is gone and riding should even be considered.
2. In Illinois, you can be convicted of driving under the influence (DUI):
- Even if your BAC is under the legal limit. ✓
- Only if your BAC is 0.08 percent or higher.
- Only if you have an accident while your BAC is .08 percent or higher.
- Even if you have not been drinking or consuming controlled substances.
Answer: A. Even if your BAC is under the legal limit.
3. Generally, the body eliminates how many alcoholic drinks per hour?
- One ✓
- Two
- Three
- Four
Answer: A. One
Generally, the body eliminates about one alcoholic drink per hour. The manual says alcohol leaves the body at a rate of almost one drink per hour. That is why the answer is one. The same section warns that this is only a general rate: how much you drink, how fast you drink, and body weight affect BAC, and alcohol can still build up even when you drink at about one per hour, especially for women. So one drink per hour is the usual elimination figure, not a guarantee that you are unaffected.
4. Unlike most food and drinks, alcohol does not need to be digested. This means that:
- Within minutes of being consumed, the alcohol reaches the brain and begins to affect the drinker. ✓
- The alcohol never gets removed from the body.
- It takes a long time to feel the effects of alcohol.
- Once it is in your system, your body gets rid of the alcohol quickly.
Answer: A. Within minutes of being consumed, the alcohol reaches the brain and begins to affect the drinker.
Because alcohol needs no digestion, it reaches the brain and starts affecting you within minutes of being consumed. The manual says alcohol enters the bloodstream quickly and, unlike most foods and beverages, does not have to be digested. Within minutes of being consumed, it reaches the brain and begins to affect the drinker. That is why the answer about it hitting the brain within minutes is the right one. The same passage adds that alcohol slows down and impairs both mental and physical functions, so whatever you are doing, you do it less well after drinking.
5. Several factors influence blood alcohol concentration (BAC). Which of the following does not play a role?
- The amount of alcohol consumed
- How fast a person drinks
- Body weight
- Height ✓
Answer: D. Height
Height is the factor that does not play a role in blood alcohol concentration; the manual names how much alcohol you drink, how fast you drink it, and your body weight as the main influences. The manual lists three primary factors that determine BAC: the amount of alcohol you consume, how fast you drink, and your body weight. It adds that other things, such as sex, physical condition and food intake, can also change how alcohol affects you. Height is not on that list of primary factors or among the additional ones the manual mentions, so it is the one item here that does not affect BAC.
6. In Illinois, a person with a blood alcohol concentration (BAC) of 0.1 percent is considered legally intoxicated.
- True ✓
- False
Answer: A. True
True. A BAC of 0.1 percent is above the 0.08 percent limit, so the rider is legally intoxicated. The manual says that in all but one state, an adult at 0.08% or higher is considered intoxicated; Utah's limit is lower, at 0.05%. A reading of 0.1% sits above that 0.08% line, so it counts as legal intoxication. The manual does not list limits state by state, so the conclusion here comes from comparing the stated number with the stated threshold rather than from an Illinois-specific figure.
7. Someone convicted of driving under the influence (DUI) of alcohol or drugs may receive any of the following sentences, except:
- License suspension.
- Installation of a breath-alcohol device required to start their vehicle.
- A fine.
- A warning. ✓
Answer: D. A warning.
8. If you wait one hour to ride after having one alcoholic drink:
- You cannot be arrested for drinking and driving.
- Your riding skills will not be affected by the alcohol.
- Effects from the alcohol may still remain. ✓
- You will be fine as long as you ride slowly.
Answer: C. Effects from the alcohol may still remain.
Even after waiting an hour for one drink, the effects of the alcohol may still remain. The manual states that alcohol may still build up in your body even when you drink at a rate of one drink per hour, especially for women, and that a single drink can affect your abilities and judgment. It also notes that a person who has been drinking may not realize how much their skills have suffered. So waiting an hour does not guarantee that the alcohol is gone or that you are unaffected.
9. In Illinois, a person with a minimum blood alcohol concentration (BAC) of ______ is considered intoxicated.
- 0.02 percent
- 0.04 percent
- 0.08 percent ✓
- 0.1 percent
Answer: C. 0.08 percent
For an adult in Illinois, a blood alcohol concentration of 0.08 percent is the level at which you are considered intoxicated. The manual states that in every state except one, an adult is legally intoxicated at a BAC of 0.08% or above, and it names Utah as the single exception with a 0.05% limit. Since Illinois is not that exception, the 0.08% adult threshold applies to riders there. The manual also notes that how sober you look or act does not matter; the test result is what counts, and it points out that many riders killed in crashes had BAC above this legal limit.
10. 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.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook