Oklahoma: Alcohol and drugs
How alcohol and other drugs affect driving, implied consent, DUI penalties and Oklahoma’s zero tolerance for drivers under 21. Split into 2 shorter tests so you're not stuck in one long quiz.
Independent educational site · not affiliated with any government agency or DMV
Choose a part
All 41 Alcohol and drugs questions with answers
Choose a part above to take a practice test, or study every question and answer here.
Show the questions and answersHide the questions
-
Which of these can many prescription and over-the-counter drugs, such as cold, hay fever and pain medications, do to a driver?
- Slow your reaction time and impair your concentration and vision
- Sharpen your concentration and speed up your reaction time
- Improve your vision and keep you more alert for the whole trip
- Have no effect on driving because they are legal to buy
Show answer
Correct answer: Slow your reaction time and impair your concentration and vision
Many prescription and over-the-counter drugs can slow reaction time, cause dizziness or nervousness and weaken concentration and vision, so they can make driving unsafe.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
According to the manual, how do the same drugs in the same amounts affect people?
- The same way for everyone, as long as the drug is taken in the same amount
- The same way for every person, but only if the drug is a prescription drug
- Differently for each person, and even for the same person at different times
- Differently for each person, but the same every time that person takes it
Show answer
Correct answer: Differently for each person, and even for the same person at different times
Weight, mood, food, sleep and tolerance all matter, so the same drug can affect different people, and the same person at different times, in different ways.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
Why is mixing drugs especially dangerous?
- They cancel each other out, which makes the effects on your driving smaller
- They react with each other and multiply the harmful effects on your concentration
- They are absorbed more slowly, so the effects show up only after the trip ends
- Their effects are added together only when the drugs are taken within an hour
Show answer
Correct answer: They react with each other and multiply the harmful effects on your concentration
Drugs that are mixed react with each other and multiply the harm to concentration and coordination, and this is especially true when one of them is alcohol.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
What does even a small amount of alcohol or drugs reduce?
- Your ability to stay awake, but not your ability to judge a situation
- Your ability to see colors, but not your ability to react quickly
- Nothing, unless the amount is above the legal limit
- Your ability to judge a driving situation, decide what to do and act quickly
Show answer
Correct answer: Your ability to judge a driving situation, decide what to do and act quickly
Even a small amount of alcohol or drugs weakens your judgment, your decisions and how fast you act.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
Which of your driving skills does alcohol affect almost immediately?
- Your judgment
- Your hearing
- Your strength
- Your memory of the road
Show answer
Correct answer: Your judgment
Alcohol reaches the blood quickly, and the manual says driving skills, especially judgment, are affected almost immediately.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
By the time you feel the effects of alcohol, what is already true?
- Your judgment is still good but your reflexes are slower
- You still have time to decide whether it is safe to drive
- Your judgment and coordination are already impaired
- Your coordination has improved for a short time
Show answer
Correct answer: Your judgment and coordination are already impaired
Alcohol takes away your judgment before you notice it, so by the time you feel it you are already impaired.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
As the amount of alcohol in your body increases, what happens to your driving?
- Your judgment worsens but your driving skill stays the same
- Your judgment worsens and your driving skill decreases
- Your judgment stays the same but you tire more quickly
- Your judgment is not affected until you reach the legal limit
Show answer
Correct answer: Your judgment worsens and your driving skill decreases
More alcohol means poorer judgment and weaker driving skill.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
Which of these is an effect of alcohol on your body?
- It speeds up your reflexes but makes your vision blurry for a short time
- It makes you more alert for a short time but slows your ability to judge speeds
- It slows your reflexes but improves your ability to judge distances and speeds
- It slows your reflexes and reaction time and reduces your ability to see clearly
Show answer
Correct answer: It slows your reflexes and reaction time and reduces your ability to see clearly
Alcohol slows reflexes and reaction time, makes it harder to see clearly and makes you less alert.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
A 12-ounce can of beer contains the same amount of alcohol as which of these?
- A 5-ounce glass of wine
- A 12-ounce glass of wine
- A cocktail with 3 ounces of 80-proof distilled spirits
- A 2-ounce glass of wine
Show answer
Correct answer: A 5-ounce glass of wine
A 12-ounce beer, a 5-ounce glass of wine and a cocktail with 1.5 ounces of 80-proof spirits hold the same amount of alcohol.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 64 · Open this page in the manual (Manual page 64)
-
Under the Implied Consent Law, what have you agreed to by driving or by being in actual physical control of a motor vehicle?
- To report any collision to Service Oklahoma within 24 hours
- To complete an alcohol education class after any traffic stop
- To take one or more tests to determine your blood alcohol content
- To let a law enforcement officer search the vehicle at any time
Show answer
Correct answer: To take one or more tests to determine your blood alcohol content
Driving or being in actual physical control means you have agreed to take one or more blood alcohol content (BAC) tests.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
Who does the Implied Consent Law apply to?
- Only drivers who live in Oklahoma and hold a license issued here
- Everyone, residents and non-residents alike
- Only drivers who are 21 or older and have been drinking
- Only drivers who have been arrested for DUI before
Show answer
Correct answer: Everyone, residents and non-residents alike
The law applies to every driver, whether they live in Oklahoma or not.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What happens if you refuse the test requested by a law enforcement officer under the Implied Consent Law?
- Nothing happens unless a court later convicts you of DUI
- Your license is revoked only if you had actually been drinking
- You get a written warning for the first refusal and nothing more
- Your driving privilege is revoked, even if you have not been drinking
Show answer
Correct answer: Your driving privilege is revoked, even if you have not been drinking
Refusing the test brings an automatic revocation of your driving privilege, whether or not you had been drinking.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
For a driver 21 or older, which BAC level leads to revocation of the driver license under the Implied Consent Law, even without a DUI conviction in court?
- 0.08 or more
- 0.02 or more
- 0.04 or more
- 0.06 or more
Show answer
Correct answer: 0.08 or more
A test result of 0.08 or more brings revocation of the license even if the driver is not convicted in court.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
How long is the revocation period if your license is revoked under the Oklahoma Implied Consent Law?
- From 10 days to 60 days, depending on your age at the time
- From 1 year to 5 years, depending on your BAC level at the test
- From 180 days to 2 years, depending on your previous driving record
- A fixed 1 year, whatever your previous driving record shows
Show answer
Correct answer: From 180 days to 2 years, depending on your previous driving record
The period runs from 180 days to 2 years and depends on the driver's earlier record.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
Besides a BAC test, what else can be used as evidence in court and can result in a DUI conviction?
- Only the driver's own statement about how much was consumed
- Observations and information gathered by the arresting officer
- The driver's record of traffic tickets from the past three years
- Nothing else; a conviction requires a BAC test result
Show answer
Correct answer: Observations and information gathered by the arresting officer
The officer's observations can be used in court, and a conviction is possible without a BAC test.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
According to the manual, when does impairment of judgment and skill begin?
- Only once your BAC reaches the legal limit
- Only after you have had more than three drinks
- Only after you start to feel the effects of the alcohol
- Well below the legal limit
Show answer
Correct answer: Well below the legal limit
Judgment and skill are already impaired at levels well under the legal limit.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is an alcohol concentration of more than 0.05 considered under Oklahoma law?
- Relevant evidence that the driver's ability to drive was impaired
- Automatic proof of DUI that requires no other evidence
- A violation that applies only to drivers under 21
- Evidence that can be used only if the driver refused a test
Show answer
Correct answer: Relevant evidence that the driver's ability to drive was impaired
A level above 0.05 is relevant evidence that the driver’s ability to drive was impaired.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is the penalty on conviction for a BAC over 0.05 but less than 0.08?
- A fine of $100–$1,000, up to 10 days in jail or both
- A fine of up to $2,500 and a felony charge with prison
- A fine of $100–$500, up to 6 months in jail or both
- Only a written warning, with no fine and no jail time
Show answer
Correct answer: A fine of $100–$500, up to 6 months in jail or both
For a BAC over 0.05 but under 0.08, conviction brings a fine of $100 to $500, up to 6 months in jail, or both.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
According to the manual, DUI means that a driver is what?
- Driving after being suspended for too many points
- Intoxicated by drugs or alcohol or both
- Driving without liability insurance in the vehicle
- Driving while too tired to stay alert
Show answer
Correct answer: Intoxicated by drugs or alcohol or both
DUI stands for Driving Under the Influence and means the driver is intoxicated by drugs, alcohol or both.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
A first DUI offense with a BAC of .08 or more is classified as what?
- A felony
- A civil infraction
- A warning only
- A misdemeanor
Show answer
Correct answer: A misdemeanor
A first DUI offense at .08 or more is a misdemeanor.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is the jail term for a first DUI offense with a BAC of .08 or more?
- Not less than ten days nor more than 1 year
- Not less than 48 hours nor more than 30 days
- Not less than 1 month nor more than 6 months
- No jail time is possible for a first offense
Show answer
Correct answer: Not less than ten days nor more than 1 year
A first offense carries jail of at least ten days and at most one year.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is the maximum fine for a first DUI offense with a BAC of .08 or more?
- $500
- $750
- $1,000
- $1,500
Show answer
Correct answer: $1,000
A first offense carries a fine of not more than $1,000 plus the jail term.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
A second DUI offense within 10 years (BAC .08 or more) is classified as what?
- A misdemeanor
- A felony
- A civil infraction
- A traffic ticket only
Show answer
Correct answer: A felony
A second offense within 10 years is a felony.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is the imprisonment term for a second DUI offense within 10 years (BAC .08 or more)?
- Not less than 30 days, not to exceed 6 months
- Not less than 2 years, not to exceed 3 years
- Not less than 5 years, not to exceed 20 years
- Not less than 1 year, not to exceed 5 years
Show answer
Correct answer: Not less than 1 year, not to exceed 5 years
The term for a second offense within 10 years is at least 1 year and no more than 5 years.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is the maximum fine for a second DUI offense within 10 years (BAC .08 or more)?
- $2,500
- $750
- $1,500
- $7,500
Show answer
Correct answer: $2,500
A second offense within 10 years carries a fine of not more than $2,500.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is the imprisonment term for a third or subsequent DUI offense (BAC .08 or more)?
- Not less than ten days, not to exceed 1 year
- Not less than 6 months, not to exceed 2 years
- Not less than 1 year, not to exceed 10 years
- Not less than 1 year, not to exceed 3 years
Show answer
Correct answer: Not less than 1 year, not to exceed 10 years
A third or later offense brings at least 1 year and up to 10 years of imprisonment.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
What is the maximum fine for a third or subsequent DUI offense (BAC .08 or more)?
- $3,000
- $5,000
- $7,500
- $10,000
Show answer
Correct answer: $5,000
A third or later offense carries a fine of not more than $5,000.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 65 · Open this page in the manual (Manual page 65)
-
How do the effects of drugs other than alcohol compare with alcohol when it comes to thinking and driving?
- They are always milder than the effects of alcohol
- They affect your driving only when they are taken with alcohol
- They affect your driving only when the drugs are illegal
- They can impair your thinking and driving even more than alcohol
Show answer
Correct answer: They can impair your thinking and driving even more than alcohol
Drugs other than alcohol can impair thinking and driving even more than alcohol does.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 66 · Open this page in the manual (Manual page 66)
-
Before you take a prescription or over-the-counter drug, what should you check?
- The label for warnings about side effects, such as drowsiness
- The label for the manufacturer and the date the drug was made
- The drug's color and shape, to be sure it is the right pill
- The label for the price and the number of pills inside
Show answer
Correct answer: The label for warnings about side effects, such as drowsiness
The label warns about side effects such as drowsiness or nervousness that can affect your driving.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 66 · Open this page in the manual (Manual page 66)
-
If you are not sure it is safe to take a drug and drive, what should you do?
- Take half of the usual amount
- Wait to see how the drug makes you feel
- Ask a pharmacist or doctor
- Drive only on roads you know well
Show answer
Correct answer: Ask a pharmacist or doctor
When in doubt about a drug and driving, a pharmacist or doctor can tell you.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 66 · Open this page in the manual (Manual page 66)
-
What can diet and pep pills bring on after they have made you more alert for a short time?
- Longer alertness with better concentration and sharper vision
- Nervousness, dizziness, poor concentration and distorted vision
- Hunger and a strong need for sleep, but no change in vision
- Calm, steady reactions that last for several hours
Show answer
Correct answer: Nervousness, dizziness, poor concentration and distorted vision
Diet and pep pills give a short burst of alertness and then can cause nervousness, dizziness, poor concentration and distorted vision.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 66 · Open this page in the manual (Manual page 66)
-
According to the manual, how do people who use marijuana compare with other drivers?
- They make fewer mistakes but have more trouble judging speed
- They adjust to glare better but have more trouble parking
- They make about the same number of mistakes as other drivers
- They make more driving mistakes and have more trouble adjusting to glare
Show answer
Correct answer: They make more driving mistakes and have more trouble adjusting to glare
Research cited in the manual shows marijuana users make more driving mistakes, have more trouble with glare and have more arrests for traffic violations.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 66 · Open this page in the manual (Manual page 66)
-
Although the state has legalized cannabis for some medical purposes, what is illegal?
- Driving with any detectable level of cannabis in your system
- Driving with a cannabis prescription card in the vehicle
- Driving with a detectable level only when you are under 21
- Driving within one hour after using cannabis for medical reasons
Show answer
Correct answer: Driving with any detectable level of cannabis in your system
It is illegal for anyone to drive with any detectable level of cannabis in their system, medical use or not.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 66 · Open this page in the manual (Manual page 66)
-
What is the smallest amount of alcohol that makes it unlawful for a person under 21 to drive or be in actual physical control of a motor vehicle?
- At least 0.08 BAC, the same limit that applies to adult drivers
- At least 0.05 BAC, the level where impairment can first be shown
- Any measurable quantity of alcohol in the blood or breath
- At least 0.10 BAC, the same level as a drunk driving arrest
Show answer
Correct answer: Any measurable quantity of alcohol in the blood or breath
Under the Zero Tolerance Law, ANY measurable quantity of alcohol in the blood or breath is unlawful for a person under 21.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)
-
In the Zero Tolerance Law, what does APC stand for?
- Alcohol and prescription combination
- Actual physical control
- Automatic penalty charge
- Authorized permit certificate
Show answer
Correct answer: Actual physical control
APC means actual physical control of a motor vehicle, which is covered in addition to driving or operating.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)
-
How long is the license revocation for a first conviction or offense under the Zero Tolerance Law?
- Three months
- Nine months
- 18 months
- Six months
Show answer
Correct answer: Six months
A first Zero Tolerance revocation lasts six months.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)
-
How long is the license revocation for a second conviction or offense under the Zero Tolerance Law?
- 12 months
- Two years
- Three months
- 18 months
Show answer
Correct answer: 12 months
A second Zero Tolerance revocation lasts 12 months.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)
-
Under the Zero Tolerance Law, what happens if a person is less than 16 at the time or will be less than 16 at the end of the cancellation?
- Service Oklahoma shortens the cancellation to three months in every case
- Service Oklahoma waives the cancellation until the person is 18 years old
- Service Oklahoma extends the cancellation until the person is 16 years of age
- Service Oklahoma cancels the license permanently for the person
Show answer
Correct answer: Service Oklahoma extends the cancellation until the person is 16 years of age
A cancellation is extended until the person turns 16 when the person is still under 16.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)
-
If you are under 18 and commit an offense involving alcohol or a controlled dangerous substance, what is a court required to do?
- Notify Service Oklahoma of the offense
- Notify your school and your insurance company
- Wait until you are 18 before reporting it
- Report it only if a collision occurred
Show answer
Correct answer: Notify Service Oklahoma of the offense
The court must tell Service Oklahoma about any alcohol or controlled substance offense by a person under 18.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)
-
After a court notifies Service Oklahoma of an alcohol or controlled substance offense by a person under 18, what is Service Oklahoma required to do?
- Send a written warning to the driver and wait for a second offense to act
- Suspend the license for exactly 90 days in every case, whatever the court says
- Cancel or deny a driver license for a period recommended by the court or required by law
- Do nothing unless the driver is convicted a second time of such an offense
Show answer
Correct answer: Cancel or deny a driver license for a period recommended by the court or required by law
Service Oklahoma must cancel or deny the license for the period the court recommends or the law requires.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)
-
For a person under 18, which is the longest period the court may choose for the penalty?
- 1 year or until the person turns 18, whichever is longer
- 2 years or until the person turns 21, whichever is longer
- 3 years or until the person turns 18, whichever is longer
- 6 months or until the person turns 21, whichever is shorter
Show answer
Correct answer: 2 years or until the person turns 21, whichever is longer
The court may choose 6 months, 1 year, or 2 years or until age 21, whichever period is longer.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 67 · Open this page in the manual (Manual page 67)