Impaired Driving & Penalties — California
California motorcycle permit practice test: 329 free practice questions (19 official sample questions · Official driver handbook). Official test format: Multiple choice, pass mark 80% (DMV does not publish the question count). 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 | California Motorcycle permit test |
| Topic questions | 19 (6% of 329 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
California Motorcycle Handbook (DL 665) ✓ Verified from official source
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Questions (19)
1. Unlike other substances, alcohol:
- Is very quickly absorbed into the bloodstream. ✓
- Needs to be digested to enter the bloodstream.
- Can improve your riding ability.
Answer: A. Is very quickly absorbed into the bloodstream.
Alcohol is very quickly absorbed into the bloodstream. The manual explains that alcohol goes into your bloodstream fast because, unlike most foods and drinks, it does not have to be digested first. It reaches the brain within minutes of being consumed. That is the difference the question is asking about, so the quick absorption is the right choice. The same page also notes that alcohol slows down and impairs both mental and physical functions.
2. 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.
3. When consumed together, the effects of alcohol and drugs:
- Are less dangerous than when either is consumed alone.
- Often balance out.
- Can be more pronounced than when either is consumed alone. ✓
Answer: C. Can be more pronounced than when either is consumed alone.
When alcohol and drugs are used together, their effects can be more pronounced than when either one is used alone. The manual says no one is immune to alcohol or drugs, and that both reduce clear thinking and physical skill. It also says judgment and decision-making are affected before legal limits are reached. On combining them, the manual states that the combined effects of alcohol and drugs are more dangerous than either is alone. That directly supports the idea that taking them together can hit a rider harder than either substance by itself.
4. 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.
5. How many alcoholic drinks need to be consumed before the drinker's riding ability is affected?
- One ✓
- Two
- Three
Answer: A. One
Even one alcoholic drink can affect your riding ability. The manual says that as little as one drink can have a significant effect on your performance. It also explains that alcohol reaches the brain within minutes and starts to affect the drinker, slowing mental and physical functions. Riding a motorcycle is a demanding task that depends on clear thinking and quick, skillful decisions, so the loss of ability begins with the first drink, not after a later one. That is why the correct choice is the one-drink answer.
6. As you consume more alcohol, your ability to safely ride:
- Increases.
- Stays the same.
- Decreases. ✓
Answer: C. Decreases.
As you consume more alcohol, your ability to safely ride decreases. The manual says the more alcohol in your blood, the greater the degree of impairment, and that alcohol and drugs degrade your ability to think clearly and ride skillfully more than any other factor. It also notes that even one drink can affect your abilities and judgment. Since riding demands quick, skillful decisions, adding more alcohol leaves you less able to ride safely.
7. Which factor does not play a major role in affecting your blood alcohol content (BAC)?
- Age ✓
- The amount of alcohol consumed
- Body weight
Answer: A. Age
Age is the factor that does not play a major role in affecting your blood alcohol content; the manual's three primary factors are the amount of alcohol you drink, how fast you drink it, and your body weight. The manual states that three primary things shape your BAC: how much alcohol you consume, how quickly you drink, and your body weight. It adds a few lesser contributors, like your sex, physical condition and whether you have eaten, but age is not named as one of the major influences. So when you are asked which item is not a major factor, age is the one left off that list of three.
8. The best way to avoid fatigue when riding your motorcycle on a long trip is to:
- Take frequent breaks to rest. ✓
- Ride as fast as possible.
- Take artificial stimulants.
Answer: A. Take frequent breaks to rest.
Take frequent breaks to rest. That is the manual's advice for avoiding fatigue on a long ride. The manual says riding a motorcycle tires you faster than driving a car, and fatigue can affect your control. Its fatigue advice includes taking frequent rest breaks and getting off the motorcycle at least every two hours. That is why the correct choice is to take frequent breaks to rest. The manual also warns against artificial stimulants, which can lead to extreme fatigue or depression when they wear off and make it hard to concentrate.
9. Having only one alcoholic drink before riding:
- Will not lead to a DUI conviction.
- Will never affect your riding skills.
- Can affect your ability to operate a motorcycle. ✓
Answer: C. Can affect your ability to operate a motorcycle.
10. A person with a minimum blood alcohol content (BAC) of ____ is considered intoxicated.
- 0.02 percent
- 0.04 percent
- 0.08 percent ✓
Answer: C. 0.08 percent
An adult is considered intoxicated at a blood alcohol content of 0.08 percent. The manual states that in all but one state, an adult with a BAC of 0.08% or above is legally intoxicated, and it notes Utah uses a lower 0.05% threshold. Riders under 21 face lower limits, between 0.00 and 0.02% depending on the state. So 0.08 percent is the general adult limit the test is asking about. The manual also stresses that appearing sober does not matter, since a breath, blood, or urine test is what usually decides the question.
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Last checked: 2026-10-17 · Not yet verified
Updated: · 19 official sample questions · Official driver handbook