Free practice + study guide

Illinois Permit Test (SOS Written Test)

  • 27 free practice questions, every one explained · no signup
  • Timed mock exam (27 questions, 27 minutes) — free
  • Study guide: free to read online
Practice free 27 questions · explanations · no signup
01

Test what you know · free, all of it

Four ways to practise.

The same 27 questions, dealt four ways. Pick the one that fits the time you have.

02

Learn what the questions test

Practice · free
27
questions, each explained — finds what you don't know yet
Learn · free
5
chapters, free to read online

The five chapters, free online

every chapter free online
  1. 1Signs & Signals22% of the examRead free →
  2. 2Rules of the Road & Right of Way24% — the largest sectionRead free →
  3. 3Safe Driving & Sharing the Road18%Read free →
  4. 4Speed & Conditions18%Read free →
  5. 5Alcohol, Drugs & IL Penalties and GDL18%Read free →
03

Before you sit

Know the exam you're walking into.

04

See the questions first

Two from the bank, answered.

Real items, with the answer marked and the reason written out — the same format as all 27.

Signs & Signals

An eight-sided red sign always means:

  1. ACome to a complete stopCorrect
  2. BYield to traffic
  3. CSlow down for a curve
  4. DNo U-turn

Why: A red octagon is a STOP sign; you must stop completely at the marked line or crosswalk, then proceed when it is safe.

Alcohol, Drugs & IL Penalties and GDL

A driver age 21 or older in Illinois is legally driving under the influence (DUI) at a blood alcohol concentration of:

  1. A0.08% or higherCorrect
  2. B0.05% or higher
  3. C0.02% or higher
  4. D0.12% or higher

Why: For drivers 21 and older, a BAC of 0.08% or higher is DUI in Illinois; impairment from alcohol or drugs at lower levels can still bring charges.

Read all 27 questions with answers →

06

The exam itself

Illinois Permit Test (SOS Written Test), by the numbers.

Questions35
SectionsSigns & Signals · Rules of the Road & Right of Way · Safe Driving & Sharing the Road · Speed & Conditions · Alcohol, Drugs & IL Penalties and GDL
Passing score28/35 (80%)
Our bank27 questions · updated August 2026Written from Illinois Secretary of State
LanguagesEnglish
SourceIllinois Secretary of State
09

Questions

Asked before starting.

Is the practice really free, or does it stop after a few questions?

All 27 questions, the timed mock and the report are free with no sign-up. A free account only adds saving your progress.

Is your mock the same as the real Illinois Permit Test (SOS Written Test)?

No. Ours is 27 questions in 27 minutes; the real exam is 35 questions. Use the mock for stamina and section timing, not as a score predictor.

What score do I need?

28/35 (80%) — as published by Illinois Secretary of State. Confirm the current rule with them before your exam date.

Practice questions are AI-assisted study material written from Illinois Secretary of State and reviewed by PrepPass — for practice only, not official exam questions. Bank updated August 2026. PrepPass is an independent study resource and is not affiliated with, endorsed by, or approved by Illinois Secretary of State. Always confirm current exam details with Illinois Secretary of State.
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