In states that use colored curbs, what does a red curb generally mean?

No stopping, standing, or parking

Loading for commercial trucks only

Parking allowed if you stay with the car

You are on a freeway on-ramp and the ramp meter signal shows red. What should you do?

Stop at the line and wait for green

Slow down but keep rolling onto the freeway

Merge carefully if the freeway looks clear

Use the shoulder to go around the signal

When approaching a stopped vehicle displaying a blue and red flashing light on the roadside, the safest and often legally required action is to:

Change lanes away if safe, or else slow down

Speed up to pass the scene as fast as possible

Keep your speed and stay in your lane

Stop in your lane until the vehicle leaves

Free Illinois SOS Practice Permit Test - Practice Test 3 2026

25 questions80% to passExplanations includedFree

35Real test questions

80%Pass score

This Practice Test 3 is modeled on the Secretary of State (SOS) written knowledge exam, which has 35 questions; to pass you need 28 of 35 correct (80%). These 25 questions rotate through traffic laws, road signs, and right-of-way - the core topics the SOS tests most heavily. Every question includes an explanation, so you learn the rule behind each answer - not just whether you got it right.

Question 1 of 25

A pentagon (5-sided) shaped sign is associated with:

Tip: Press 1-4 to select, Enter to submit, F to flag

Inside this test

What's on the Illinois Practice Test 3

The real Illinois knowledge test has 35 questions, and to pass you need 28 of 35 correct (80%). Practice Test 3 is a 25-question set drawn from 45 questions, scored against a practice target of 80%.

Topics in this test's question pool

Road signs 16
Traffic laws 12
Safe driving 7
Alcohol & drugs 3
Emergencies 3
Vehicle equipment 2
Right of way 1
Parking 1

45 questions in the pool, 2 of them written specifically for Illinois. Each attempt shows 25 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. Illinois nighttime driving restrictions for teens begin at:
- A. 10 p.m. Sunday-Thursday and 11 p.m. Friday-Saturday (correct)
- B. 11 p.m. Sunday-Thursday and midnight on weekends
- C. 9 p.m. Sunday-Thursday and 10 p.m. Friday-Saturday
- D. 11 p.m. every night of the week
Why: Illinois teen curfew runs 10 p.m. to 6 a.m. Sunday through Thursday, and 11 p.m. to 6 a.m. Friday and Saturday.
Source: official Illinois driver handbook, Rules of the Road 2026 - GDL nighttime driving restrictions
2. What is the purpose of an anti-lock braking system (ABS)?
- A. To stop your vehicle faster by automatically pumping brakes
- B. To keep wheels from locking so you can steer (correct)
- C. To let you pump the brakes faster in a skid
- D. To brake for you when a car ahead stops
Why: ABS prevents wheels from locking during hard braking, allowing you to maintain steering control. When ABS activates, you may feel pulsing in the brake pedal - this is normal. Press firmly and steer.
Source: official Illinois driver handbook
3. Which of the following is NOT a legal reason to use your horn?
- A. To warn a driver drifting into your lane
- B. To express frustration at another driver (correct)
- C. To alert a child about to run into the road
- D. To warn others on a blind mountain curve
Why: Horns are safety devices used to warn others of danger. Using your horn out of frustration or anger is not a legal use and can be considered aggressive driving in many states.
Source: official Illinois driver handbook
4. A round (circular) sign indicates:
- A. A stop ahead
- B. A railroad crossing (correct)
- C. A speed limit change
- D. A one-way street
Why: A round, yellow sign with a black X and two R's warns of a railroad crossing ahead. The circular shape is used exclusively for railroad advance-warning signs.
Source: Federal MUTCD 11th ed. (Dec 2023) Section 2A.05 and Table 2A-1 (W10-1)
5. In states that use colored curbs, what does a red curb generally mean?
- A. Parking allowed if you stay with the car
- B. No stopping, standing, or parking (correct)
- C. Passenger loading only
- D. Loading for commercial trucks only
Why: Where curb colors are used, red means no stopping, standing or parking; it is often used for fire lanes and near hydrants. White usually means passenger loading, green limited-time parking and blue disabled parking. Curb rules vary by state and city, so obey posted signs.
Source: official Illinois driver handbook
6. If a tire blows out while you are driving, the first thing you should do is:
- A. Brake hard to stop as quickly as you can
- B. Hold the wheel firmly and ease off the gas (correct)
- C. Turn on hazard lights and stop in the lane
- D. Steer hard toward the shoulder right away
Why: During a blowout, hold the steering wheel firmly to keep the vehicle straight, ease your foot off the accelerator, and let the car slow gradually. Hard braking can cause a spin. Pull off the road only after you have control.
Source: official Illinois driver handbook

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 Practice Test 3 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.