Oklahoma: Alcohol and drugs — Part 1 Practice Test
Questions in this part include: “According to the manual, how do the same drugs in the same amounts affect people?” · “What happens if you refuse the test requested by a law enforcement officer under the Implied Consent Law?”
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Questions are original and based on the official manual "Oklahoma Driver Manual" (2025 (updated November 24, 2025)), Service Oklahoma.
All 21 questions in this practice test
Take the test above first, then use this list to study. Tap “Show answer” to see the correct answer and explanation.
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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)
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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
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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)
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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
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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
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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)
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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)
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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)
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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)