Montana: Alcohol and drugs — Part 1 Practice Test
Questions in this part include: “How soon can alcohol affect your brain after it is absorbed through the walls of the stomach?” · “According to the manual, how much wine equals one alcoholic drink?”
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Questions are original and based on the official manual "Montana Driver Manual" (Revised April 2024), Montana Department of Justice, Motor Vehicle Division.
All 18 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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How soon can alcohol affect your brain after it is absorbed through the walls of the stomach?
- Within about ten minutes
- Within one minute
- Within thirty minutes
- Within one hour
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Correct answer: Within one minute
Alcohol can be absorbed through the walls of the stomach and can affect your brain within one minute.
Source: Montana Driver Manual (Revised April 2024), page 71
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According to the manual, which areas of your brain does alcohol affect?
- Only the areas that control hearing
- Only the areas that control vision
- The areas that control long-term memory
- The areas that control judgment and skill
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Correct answer: The areas that control judgment and skill
In your brain, alcohol affects those areas that control judgment and skill.
Source: Montana Driver Manual (Revised April 2024), page 71
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Why does the manual say good judgment matters when it comes to drinking?
- Judgment helps you know when to stop drinking
- Judgment keeps your blood alcohol level from rising
- Judgment makes alcohol leave your body faster
- Judgment lets you drive safely after two drinks
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Correct answer: Judgment helps you know when to stop drinking
Alcohol affects your judgment, and judgment is what helps you to know when to stop drinking.
Source: Montana Driver Manual (Revised April 2024), page 71
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Why are new drivers more affected by alcohol than experienced drivers?
- Because new drivers are usually lighter in weight
- Because new drivers drink faster than other people
- Because new drivers are still learning to drive
- Because new drivers have a lower legal limit
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Correct answer: Because new drivers are still learning to drive
New drivers are more affected by alcohol than experienced drivers because new drivers are still learning to drive.
Source: Montana Driver Manual (Revised April 2024), page 71
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What does alcohol do to your reflexes and reaction time?
- It sharpens them for a short time
- It slows them
- It has no effect until you feel drunk
- It speeds up your reflexes but slows your vision
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Correct answer: It slows them
Alcohol slows your reflexes and reaction time, reduces your ability to see clearly, and makes you less alert.
Source: Montana Driver Manual (Revised April 2024), page 71
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The average person’s body processes one alcoholic drink in about how long?
- About 30 minutes
- About one hour
- About two hours
- About three hours
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Correct answer: About one hour
The average person’s body will process one alcoholic drink in one hour.
Source: Montana Driver Manual (Revised April 2024), page 71
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What does the manual say about alcohol if you drink at a rate of one drink per hour?
- It can still accumulate in your body
- It is gone from your body before your next drink
- It cannot affect your driving
- It affects only your sense of hearing
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Correct answer: It can still accumulate in your body
Alcohol can still accumulate in your body even if you are drinking at a rate of one drink per hour.
Source: Montana Driver Manual (Revised April 2024), page 71
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According to the manual, how much 80-proof liquor equals one alcoholic drink?
- 2-1/2 ounces
- 1 ounce
- 1-1/2 ounces
- 3 ounces
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Correct answer: 1-1/2 ounces
One alcoholic drink is 1-1/2 ounces of 80-proof liquor (one shot glass), straight or with a mixer.
Source: Montana Driver Manual (Revised April 2024), page 71
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According to the manual, how much commercial beer equals one alcoholic drink?
- 8 ounces
- 12 ounces
- 16 ounces
- 20 ounces
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Correct answer: 12 ounces
One alcoholic drink is 12 ounces of commercial beer, such as a regular size can, bottle, mug, or glass.
Source: Montana Driver Manual (Revised April 2024), page 71
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According to the manual, how much wine equals one alcoholic drink?
- A 3-ounce glass
- An 8-ounce glass
- A 10-ounce glass
- A 5-ounce glass
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Correct answer: A 5-ounce glass
One alcoholic drink is a 5-ounce glass of wine.
Source: Montana Driver Manual (Revised April 2024), page 71
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What does the manual say about microbrews and craft beers compared with a 12-ounce commercial beer?
- They often contain more alcohol
- They always contain less alcohol
- They contain exactly the same amount of alcohol
- They do not count as alcoholic drinks
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Correct answer: They often contain more alcohol
Microbrews and craft beers often contain more alcohol than a 12-ounce commercial beer.
Source: Montana Driver Manual (Revised April 2024), page 71
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Which of these is named in the manual as a factor in how impaired a person becomes when drinking?
- A person's height
- The color of the vehicle driven
- A person's body weight
- The time of day the drinking began
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Correct answer: A person's body weight
The amount consumed, how fast it is consumed, a person's body weight, food intake, and general health all play a part in how impaired a person becomes.
Source: Montana Driver Manual (Revised April 2024), page 71
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What is the manual's best answer to when you can drive if you drink alcohol?
- Wait one hour after each drink
- If you drink alcohol, do not drive
- Drive only if you feel sober
- Drive only on roads you know well
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Correct answer: If you drink alcohol, do not drive
The best answer is: If you drink alcohol, do not drive.
Source: Montana Driver Manual (Revised April 2024), page 71
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What does the manual suggest you do to deal with social drinking situations?
- Eat a big meal before you start drinking
- Drink only beer or wine and avoid liquor
- Drink slowly and let a friend watch how much you have had
- Go with two or more people and agree that one of you will not drink
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Correct answer: Go with two or more people and agree that one of you will not drink
Arrange to go with two or more people and agree that one of you will not drink alcohol.
Source: Montana Driver Manual (Revised April 2024), page 71
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What is the minimum age to buy or consume alcohol according to the manual?
- 21 years of age
- 18 years of age
- 19 years of age
- 20 years of age
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Correct answer: 21 years of age
You are not allowed to buy or consume alcohol unless you are 21 years of age or older.
Source: Montana Driver Manual (Revised April 2024), page 72
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At what blood alcohol concentration (BAC) can you be arrested for driving, according to the manual?
- 0.10% or more
- 0.04% or more
- 0.08% or more
- 0.02% or more
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Correct answer: 0.08% or more
You can be arrested for driving with a blood alcohol concentration (BAC) of 0.08% or more, or while driving under the influence.
Source: Montana Driver Manual (Revised April 2024), page 72
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What is the BAC for a driver under 21 years of age, according to the manual?
- 0.04
- 0.02
- 0.08
- 0.10
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Correct answer: 0.02
The BAC for a driver under 21 years of age is 0.02.
Source: Montana Driver Manual (Revised April 2024), page 72
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What does the manual say BAC is?
- The number of drinks you had in one hour
- The weight of alcohol in your stomach
- The speed at which alcohol leaves your body
- The percentage of alcohol in your blood
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Correct answer: The percentage of alcohol in your blood
BAC is the percentage of alcohol in your blood, and is usually determined by a breath, blood, or urine test.
Source: Montana Driver Manual (Revised April 2024), page 72