Where should you stop your vehicle at a red light when there is a stop line?

Where you can see cross traffic

In many areas a curb is painted yellow. What should you understand from this?

Stopping or parking is restricted there

You may park there for as long as you like

It shows a spot reserved for disabled drivers

What does a red traffic light mean?

Stop completely before the intersection

Stop, then go straight if the way is clear

Prepare to stop - the light will change soon

Slow down and yield to cross traffic

When driving in heavy rain, you should:

Use low beams and leave more following distance

Use cruise control to keep a steady, safe speed

Turn on hazard lights and drive at normal speed

Use high-beam headlights to see better

Free Illinois SOS Test Simulator 2026

35 questions80% to passExplanations includedFree

35Real test questions

80%Pass score

This DMV Test Simulator is modeled on the Secretary of State (SOS) written knowledge exam, which has 35 questions; to pass you need 28 of 35 correct (80%). It is a mock test: 35 questions, the length of the real test, scored to the 80% pass mark. Answers are marked only when you submit the whole test, then you review every question with its explanation. Every question includes an explanation, so you learn the rule behind each answer - not just whether you got it right.

Mock test

Illinois SOS mock test

Answer all 35 questions first. Nothing is marked until you submit the whole test, so the score shows how ready you are, and then you review every answer with its explanation.

35 questions, the same number as the real test
To pass: 28 of 35 correct (80%)
Skip, go back and change answers until you submit
Unanswered questions count as wrong

Time: We found no published time limit for the Illinois knowledge test.

Inside this test

What's on the Illinois DMV Test Simulator

The real Illinois knowledge test has 35 questions. You can miss up to 7 of the 35 questions and still pass. The minimum is 28 correct answers (80%). The simulator draws a fresh set from all 171 Illinois permit questions each time, so no two attempts are the same.

Topics in this test's question pool

Road signs 68
Traffic laws 38
Safe driving 27
Right of way 12
Alcohol & drugs 7
Emergencies 7
Parking 6
Vehicle equipment 5
Speed limits 1

171 questions in the pool, 8 of them written specifically for Illinois. Each attempt shows 35 in a new order.

Sample questions from this test, with answers

Want to test yourself first? Take the test above before reading these. Every answer below is checked against the source shown.

1. In Illinois, hands-free phone use while driving is allowed only for drivers who are:
- A. 19 or older (correct)
- B. 16 or older
- C. 18 or older
- D. 21 or older
Why: Illinois bans texting and handheld use for everyone; hands-free or Bluetooth use is permitted only for drivers 19 and older.
Source: official Illinois driver handbook, Rules of the Road 2026 - Cellphones (hands-free for age 19+)
2. Since 2024, Illinois also prohibits drivers from:
- A. Watching videos, social media, or video calls (correct)
- B. Using a hands-free headset for phone calls
- C. Using a dashboard GPS for turn-by-turn directions
- D. Listening to the radio or to podcasts
Why: A 2024 Illinois law expanded the distracted driving ban to include watching videos, accessing social media, and using teleconferencing apps while driving.
Source: official Illinois driver handbook, Rules of the Road 2026 - Cellphones and electronic devices
3. What is this sign warning you about?
- A. A crossroad ahead
- B. A railroad crossing ahead (correct)
- C. A no-passing zone ahead
- D. A four-way stop sign ahead
Why: This round yellow sign with a black X and RR warns of a railroad crossing ahead. Slow down, look and listen for trains, and be prepared to stop.
Source: Federal MUTCD 11th ed. (Dec 2023) Section 8B.06 and Table 2A-1 (W10-1)
4. The fog becomes so thick that you can barely see beyond your hood. What is the safest choice?
- A. Pull off the road as far as you can and stop (correct)
- B. Stop in your lane and wait for it to clear
- C. Switch to high beams so you can see farther
- D. Follow the taillights ahead of you closely
Why: When visibility drops to near zero, get completely off the road and wait for the fog to lift. Stopping in a travel lane invites a rear-end crash.
Source: official Illinois driver handbook
5. What does this warning sign tell you?
- A. A stop sign is ahead (correct)
- B. The road ends ahead
- C. Stopping is not allowed
- D. A police checkpoint is ahead
Why: The stop-ahead sign warns that there is a stop sign coming up that you may not see yet. Slow down and get ready to stop.
Source: p.11 (PDF p.19), Warning signs
6. What is this sign warning you about?
- A. Loose gravel on the road
- B. Slippery when wet (correct)
- C. A steep hill
- D. A winding road
Why: This sign (a car with curved skid lines) warns that the road becomes slippery when wet. Slow down, increase your following distance, and avoid sudden moves in rain or snow.
Source: Federal MUTCD 11th ed. (Dec 2023) 2C.30

More Illinois facts, the full requirements table and the printable PDF are on the Illinois permit practice test page.

Illinois SOS Test Info

Questions on real test: 35
Passing score: 80%
Correct needed: 28 of 35 correct (80%)
Minimum age: 15 years old
Testing agency: Secretary of State

Official IL SOS Website ↗

More Illinois Tests

Study Tip

Don't just aim to pass this Illinois DMV Test Simulator once - keep taking it until you score 80% or higher two or three times in a row. Read the explanation after every question, even the ones you get right, to lock in the rule before your SOS exam.