Key Indiana facts: Alcohol & Drugs
The legal BAC limit is .08. Chapter 5, Operating a Vehicle While Intoxicated, p. 23 Primary BAC factors are how much alcohol is consumed, how fast, and body weight. Chapter 8, Impaired Driving, p. 59 A motorist who fails a chemical test faces a 180-day suspension. Chapter 5, Operating a Vehicle While Intoxicated, p. 24 A motorist who refuses a chemical test faces a one-year suspension. Chapter 5, Operating a Vehicle While Intoxicated, p. 24 A motorist with a prior intoxicated-driving conviction who refuses a chemical test faces a two-year suspension. Chapter 5, Operating a Vehicle While Intoxicated, p. 24 Sample Alcohol & Drugs questions
Which behavior from another car may point to an impaired driver?
Keeping a steady speed Stopping at each stop sign Straddling the center line Signaling before each turn Show the answer
Straddling the center line
Weaving, straddling the line and wide turns are among the warning signs.
Source: Indiana Driver's Manual, Chapter 8, Ways to Spot an Impaired Driver, p. 59
What does an ignition interlock device do?
Limits the car's top speed Locks the doors after dark Tests blood alcohol before the car starts Records your phone calls Show the answer
Tests blood alcohol before the car starts
A court may require one, and the car won't start until the driver's alcohol level has been tested.
Source: Indiana Driver's Manual, Chapter 5, Operating a Vehicle While Intoxicated, p. 24
Which is one of the primary factors in determining a person's blood alcohol concentration?
The temperature of the drink How quickly the alcohol is consumed The brand of the drink The time of year Show the answer
How quickly the alcohol is consumed
Indiana's manual names three primary factors: how much you drink, how quickly and your body weight.
Source: Indiana Driver's Manual, Chapter 8, Impaired Driving, p. 59
Under Indiana's habitual violator rules, three listed major offenses within 10 years, such as drunk driving, bring what suspension?
Life One year Five years 10 years Show the answer
10 years
Three judgments from this list within 10 years lead to a 10-year suspension.
Source: Indiana Driver's Manual, Chapter 5, Habitual Traffic Violators, Section B, p. 25
A court finds you guilty of drunk operation of a boat. What happens to your driving privileges?
Nothing, since it isn't a car A warning letter from the BMV Only your boat license is affected The same penalties as a motor vehicle Show the answer
The same penalties as a motor vehicle
The conviction reaches your driver record and carries the same penalties.
Source: Indiana Driver's Manual, Chapter 5, Operating a Watercraft While Intoxicated, p. 24
A driver has two judgments within 10 years for intoxicated driving resulting in death. What is the suspension?
20 years Five years 10 years Life Show the answer
Life
Two such judgments within 10 years lead to a lifetime suspension.
Source: Indiana Driver's Manual, Chapter 5, Habitual Traffic Violators, Section A, p. 25
What blood alcohol concentration is the legal limit for driving in Indiana?
Show the answer
0.08
Driving with a BAC above the .08 legal limit is a criminal offense.
Source: Indiana Driver's Manual, Chapter 5, Operating a Vehicle While Intoxicated, p. 23
A driver with a previous intoxicated-driving conviction refuses a chemical test. How long is the suspension?
Ten years Two years One year 180 days Show the answer
Two years
A prior conviction doubles the refusal suspension to two years.
Source: Indiana Driver's Manual, Chapter 5, Operating a Vehicle While Intoxicated, p. 24
In Indiana, how long is the suspension for failing a chemical test?
One year 180 days Two years 30 days Show the answer
180 days
A motorist who fails a chemical test faces a 180-day suspension.
Source: Indiana Driver's Manual, Chapter 5, Operating a Vehicle While Intoxicated, p. 24
In Indiana, how long is the suspension for refusing a chemical test with no prior conviction?
30 days Five years 180 days One year Show the answer
One year
Refusal alone brings a one-year suspension of driving privileges.
Source: Indiana Driver's Manual, Chapter 5, Operating a Vehicle While Intoxicated, p. 24
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About these questions
We wrote these practice questions from the facts in the Indiana Driver's Manual (Published July 2026 (back cover), read 2026-11-08. Page numbers in facts are the ones printed in the manual; PDF page = printed page + 5. edition) and from official sources on road signs. Every answer links to its source, so you can check it and read more.
DMV Decoded is an independent guide, not a government agency. This practice test is not connected to the Indiana Bureau of Motor Vehicles (BMV), and your actual test will have different questions. Study the handbook, and check the agency's website for current rules.
