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Illinois permit test: alcohol and DUI questions

Illinois requires 80% right to pass the permit test and does not publish a fixed number of questions. Our practice test has 35 questions and asks for 28 right. Test format source

These 10 questions come from FirstTry's Illinois bank, written from the Illinois Rules of the Road 2026. Pick your answer, then open "Show the answer". Each answer links to the handbook section it comes from.

10 alcohol and DUI questions

A driver with no earlier DUI-related record is arrested for DUI and refuses chemical testing. How long is the statutory summary suspension?

  1. Three months
  2. Six months
  3. One year
Show the answer

One year. Refusing the test brings a one-year suspension for a first offender, longer than the six months for failing it. A second offender faces three years for refusing.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > DUI Laws > Statutory Summary Suspension/Revocation Law (PDF p. 52)

Which statement about Illinois' legal alcohol limit is correct?

  1. The limit is .10 for drivers over 21
  2. Below .08 BAC you cannot be charged with anything
  3. You can be convicted of DUI with a BAC below .08 if your driving is impaired
Show the answer

You can be convicted of DUI with a BAC below .08 if your driving is impaired. The .08 limit is a legal line, not a safe one; even small amounts of alcohol raise crash risk.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > Blood-Alcohol Concentration (BAC)/Presence of Drugs (PDF p. 51)

What is the only thing that removes the effects of alcohol from your body?

  1. A cold shower
  2. Time
  3. Coffee
Show the answer

Time. Food, coffee, and showers do not speed up how fast alcohol leaves your body; only time does.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > Blood-Alcohol Concentration (BAC)/Presence of Drugs (PDF p. 51)

By driving on Illinois roads, what have you automatically agreed to?

  1. Chemical tests such as breath, blood, or urine if asked after a DUI arrest
  2. Nothing; testing is always voluntary
  3. Only tests a judge orders
Show the answer

Chemical tests such as breath, blood, or urine if asked after a DUI arrest. Refusing has its own penalties. You may have a qualified person of your own choosing give additional tests at your own cost.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > DUI Laws > Implied Consent Law (PDF p. 52)

A first-time DUI arrestee takes a chemical test that shows a BAC of .08 or more. How long is the statutory summary suspension?

  1. One year
  2. Six months
  3. Three months
Show the answer

Six months. Failing the test costs a first offender six months, while refusing costs a year. Second offenders face one year for a failed test and three years for refusing.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > DUI Laws > Statutory Summary Suspension/Revocation Law (PDF p. 52)

A driver with a prior DUI-related suspension refuses chemical testing after a new DUI arrest. What suspension follows?

  1. Six months
  2. Three years
  3. One year
Show the answer

Three years. For a second offender, refusing costs three years and a failed test costs one year. The suspension starts on the 46th day after the notice, and you may drive for the first 45 days on the temporary receipt.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > DUI Laws > Statutory Summary Suspension/Revocation Law (PDF p. 52)

What is the minimum revocation for a second DUI conviction committed within 20 years?

  1. One year
  2. Five years
  3. Two years
Show the answer

Five years. A first DUI brings at least a one-year revocation, a third at least 10 years, and a fourth or later revocation for life.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > DUI Conviction (PDF p. 53)

A driver under age 21 is found to have a tiny amount of alcohol in their system, far below the legal limit for adults. What happens to their driving privileges?

  1. A suspension of at least three months
  2. A one-year revocation
  3. Nothing, since it was under .08
Show the answer

A suspension of at least three months. Illinois has zero tolerance for drivers under 21: any amount of alcohol brings at least a three-month suspension.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > Drivers Under Age 21 (PDF p. 55)

Someone younger than 21 is convicted of DUI. What is the minimum revocation?

  1. Six months
  2. One year
  3. Two years
Show the answer

Two years. Drivers under 21 lose their licenses for at least two years after a first DUI conviction.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > Drivers Under Age 21 (PDF p. 55)

Who may legally drink alcohol inside a vehicle on Illinois roads?

  1. Nobody; drinking is illegal in any moving vehicle
  2. Passengers in any private car
  3. Passengers in the back seat
Show the answer

Nobody; drinking is illegal in any moving vehicle. It is also illegal to keep an opened alcohol container in the passenger area. Charter bus riders, motor homes, and limousine passengers are the exceptions.

From the handbook: Chapter 6: Driving Under the Influence (DUI) > Related DUI Offenses > Illegal Transportation of Alcoholic Beverages/Open Container (PDF p. 54)

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