State laws, insurance and documents: Illinois SOS written test practice
11 free practice questions on state laws, insurance and documents for the Illinois SOS written knowledge test, each with the correct answer and a short explanation. Study them here, then check yourself in the interactive quiz or the exam simulator.
1. The minimum liability insurance requirements in Illinois are:
$15,000 / $30,000 / $5,000
✓ $25,000 / $50,000 / $20,000
$50,000 / $100,000 / $25,000
There is no minimum requirement
Why: Illinois requires minimum liability coverage of $25,000 per person / $50,000 per accident for bodily injury, plus $20,000 for property damage — often called '25/50/20' coverage.
2. When riding at night, a bicycle (or e-bike) in Illinois must be equipped with:
No lighting is required if riding on a well-lit street
✓ A front white light and a rear red reflector or light
Only a rear light
Reflective clothing instead of lights
Why: Illinois law requires bicycles ridden at night to have a front white light visible from a distance and a rear red reflector or light, so the bicyclist can be seen by other traffic.
3. In an Illinois school zone with posted signs, the speed limit during school hours when children are present is typically:
15 mph
✓ 20 mph
25 mph
30 mph
Why: Illinois law sets school zone speed limits at 20 mph, enforced on school days from 6:30 a.m. to 4:00 p.m. when children are present and signs are posted.
4. During the first 12 months after receiving a provisional license, a driver under 18 is generally prohibited from:
Driving with any passengers at any time
✓ Transporting passengers under the age of 20 without an adult aged 25 or older present, and driving between 11:00 p.m. and 5:00 a.m. without a valid reason
Driving during the day on weekdays
Using a navigation system
Why: During the first 12 months, a minor driver is generally not permitted to transport passengers under the age of 20 without being accompanied by a licensed adult aged 25 or older, and may not drive between 11:00 p.m. and 5:00 a.m., except for valid reasons (work, school, or medical necessity).
5. What is an SR-22 in Illinois?
A type of driver's license endorsement
✓ A certificate of financial responsibility that an insurer files with the state on a driver's behalf
A vehicle safety inspection form
A permit required for teen drivers
Why: An SR-22 is a certificate an insurance company files with the Secretary of State proving a driver carries the state-required minimum liability coverage; it's typically required after certain violations, such as repeat no-insurance offenses or a DUI-related license reinstatement.
6. How often must a driver's vision generally be screened when renewing an Illinois driver's license?
Never; vision is only checked at the initial license application
✓ At each renewal
Only after age 75
Only if the driver reports a vision problem
Why: Illinois generally requires a vision screening at each license renewal to confirm the driver still meets the vision standards needed to drive safely.
7. A funeral procession with its headlights on:
Has no special rights
✓ May proceed through an intersection in a convoy behind the lead vehicle, even if the light has changed
Must stop at every intersection
May drive in the oncoming lane
Why: Vehicles in a funeral procession with their headlights on usually travel in a column behind the lead vehicle, even if the light has changed—do not break up or cut in front of the procession.
8. A bus or streetcar stopped to pick up passengers on a street with one lane in each direction can usually be passed:
Only on the right
✓ Only on the left, if it is safe to do so and not prohibited by road markings
On either side, without restriction
You can't pass it; you have to wait
Why: If there is no separate lane for passing, you can usually pass a stopped bus or streetcar on the left, provided it is safe to do so and not prohibited by signs or road markings.
9. Does Illinois have a specific law about wearing headphones while driving?
✓ Yes — wearing a headset or earphones covering both ears while driving is prohibited
Yes — headphones of any kind are completely banned in vehicles
No, headphone use while driving is not regulated at all
Yes — but only for commercial drivers
Why: Illinois law prohibits wearing a headset or earphones covering both ears while driving, since this can block out sirens, horns, and other important sounds; a single earpiece for phone calls or a hearing aid is exempt.
10. Fatigue while driving is especially dangerous because it:
Has no effect on the driver's reaction time
✓ Slows reaction time and can cause a brief microsleep while driving
Affects only passengers
Is dangerous only at night
Why: Fatigue slows reaction time and increases the risk of “microsleep”—a brief, involuntary lapse into sleep while driving, which is enough to cause an accident.
11. On a multi-lane highway, slower-moving traffic should:
Stay in the left lane at all times
✓ Keep to the right, yielding the left lane to faster traffic that wants to pass
Use whichever lane is most convenient
Stay in the center lane
Why: Slower vehicles should keep to the right and use the left lane mainly for passing, allowing faster traffic to move past safely.