Illinois SOS Permit Practice Test 25
- Questions35
- Correct to pass28
- Passing score80%
- Minimum age15 years
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1. What is the function of a regulatory sign?
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Answer A: To inform road users of traffic laws or regulations that apply at that location
Regulatory signs state requirements that carry the force of law where they are posted, so disregarding one is a violation rather than a lapse of judgment.
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2. A yellow diamond showing two vertical arrows, one pointing up and one pointing down, warns that
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Answer A: the road ahead carries traffic in both directions
The two-way traffic sign warns that the roadway ahead is not divided and that vehicles will be coming from the opposite direction.
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3. Some crosswalks are marked with two transverse lines and others with a row of wide bars laid along the direction of travel. Why is the second pattern used?
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Answer B: It is far easier for an approaching driver to see
Longitudinal bar patterns are used where extra visibility is wanted, such as an uncontrolled crossing or one near a school, because they show up much better from a car.
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4. Traffic has built up behind you while you wait for a gap to turn left. How should that affect your decision?
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Answer C: It should not change it; wait for a gap that is genuinely safe
Pressure from behind does not make a small gap bigger, and rushing a left turn across traffic is a common cause of serious crashes.
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5. A yellow diamond showing the silhouette of a deer warns that
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Answer D: large animals may cross the road in that area
The sign marks a stretch where animals are known to cross, so drivers should reduce speed and scan both roadsides, especially around dawn and dusk.
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6. Illinois' Scott's Law is named after a Chicago Fire Department lieutenant who was killed by an intoxicated driver in 2000 while responding to a crash on which expressway?
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Answer D: The Dan Ryan Expressway
Scott's Law is named for Lieutenant Scott Gillen of the Chicago Fire Department, who was killed by an intoxicated driver in 2000 while assisting at a crash on the Dan Ryan Expressway.
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7. You are driving on an open highway in a strong crosswind. What is the safest adjustment?
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Answer A: Reduce speed and keep a firm grip, expecting gusts on bridges and beside large vehicles
Gusts hit hardest in open gaps, on bridges and when passing high-sided vehicles, so a lower speed and a firm grip let you correct before you are pushed out of your lane.
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8. What must a driver be ready to do along the stretch of road where this sign is posted?
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Answer D: Slow down and stop for a child who steps into the roadway
Children misjudge speed and distance and act without warning, so the driver reduces speed, covers the brake and scans the sidewalks and parked vehicles.
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9. You are the first to arrive at a crash on a rural road. What should you do first?
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Answer C: Park well clear of the scene, put on your hazard lights and call for help
Getting trained help on the way and keeping the scene visible does more good than anything an untrained bystander can do.
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10. Under Illinois' Scott's Law, how is a violation classified if it results in damage to another person's property?
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Answer D: A Class A misdemeanor
A Scott's Law violation that causes property damage is classified as a Class A misdemeanor in Illinois.
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11. What happens to the driving privileges of an Illinois driver under 21 convicted of possessing or consuming alcohol, even when not caught driving impaired?
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Answer C: Suspension for 6 months on a first conviction and 12 months on a second, plus a possible fine and jail time
Illinois suspends the driving privileges of an under-21 offender convicted of possessing or consuming alcohol for 6 months on a first conviction and 12 months on a second, plus a possible fine of up to $2,500 and up to a year in jail.
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12. At a four-way stop you and an opposing driver arrive together. You are going straight and the other driver is turning left across your path. Who goes first?
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Answer B: You do, because the left turn crosses your path
When two opposing drivers arrive together, the one going straight goes first and the left-turning driver yields.
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13. Why is passing another vehicle a bad idea in dense fog?
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Answer C: You cannot see far enough ahead to know the passing lane is clear
A pass needs a clear view of the road well beyond the vehicle you are overtaking, and fog takes exactly that away.
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14. Your vehicle is stuck in deep snow and you run the engine for heat while waiting for help. What must you check?
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Answer C: That the exhaust pipe is clear of snow
Snow packed around the tailpipe pushes exhaust back into the cabin, and carbon monoxide can kill without warning. Clear the pipe and crack a window open.
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15. About how far does a vehicle travel in one second at 60 mph?
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Answer A: About 88 feet
At 60 mph you cover about 88 feet every second, which is why a glance of only two or three seconds means driving the length of several vehicles blind.
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16. A speed limit sign carries a second panel reading TRUCKS 55. What does that panel do?
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Answer B: It sets a lower legal limit for trucks
A truck speed limit panel is regulatory, so trucks are bound by the lower figure while other traffic keeps to the main limit.
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17. A small plate under a stop sign reads CROSS TRAFFIC DOES NOT STOP. What is it telling you?
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Answer D: Traffic on the cross street is not required to stop at all
The plate warns that the other road is uncontrolled, so you must wait for a gap instead of expecting anyone to take turns with you.
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18. What does it mean to cover the brake, and when should you do it?
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Answer B: Hold your foot over the brake pedal without pressing it when a hazard seems likely
Covering the brake cuts reaction time when you expect trouble, such as near children, parked cars or a vehicle that may pull out. Riding the brake wears it out and confuses drivers behind you.
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19. You come up behind a bicyclist who is descending a steep hill in the middle of the traffic lane. What should you take into account?
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Answer D: The rider may be moving at close to the speed of the traffic
A bicycle can reach the speed of traffic on a descent, so there is little to gain from a pass and the rider needs the whole lane to steer around surface hazards.
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20. A flagger in a work zone turns a paddle so that the red octagonal face reading STOP is toward you. What must you do?
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Answer A: Stop completely and wait for the flagger to signal you forward
The STOP face of a flagger paddle requires a complete stop, and you may move again only when the flagger directs you to.
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21. In addition to license revocation, what mandatory minimum punishment does Illinois impose on a second DUI conviction?
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Answer C: Five days in jail or 240 hours of community service
Illinois law requires a second DUI conviction to carry either a mandatory five days in jail or 240 hours of community service.
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22. When should you arrange your way home if you plan to drink?
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Answer C: Before the first drink
Judgment is the first thing alcohol weakens, so the plan has to be made while you can still make a good one.
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23. You are entering a freeway using an on-ramp with an acceleration lane. What is the correct technique?
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Answer C: Use the acceleration lane to reach the speed of traffic, then merge into a gap while yielding to traffic already on the freeway
The acceleration lane exists so you can match the speed of freeway traffic before merging, and drivers already on the freeway have the right-of-way.
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24. What is the correct technique for backing a vehicle straight?
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Answer B: Check behind the vehicle before getting in, then turn and look through the rear window while backing slowly
Mirrors and cameras leave gaps close to the vehicle, so walk behind it first, then turn in your seat for a direct view and keep the speed low enough to stop instantly.
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25. What warning does Illinois child passenger safety guidance give about a rear-facing car seat and a vehicle's front passenger airbag?
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Answer C: A rear-facing seat should never be placed in a front seat with an active airbag
Illinois child passenger safety guidance warns that a rear-facing child safety seat should never be placed in the front seat of a vehicle with an active passenger-side airbag.
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26. On what roads may a titled and registered low-speed vehicle legally be driven in Illinois?
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Answer A: Roads with a posted speed limit of 30 miles per hour or less
Illinois law allows a low-speed vehicle to be driven on roads with a posted speed limit of 30 miles per hour or less.
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27. On loose gravel or deep fresh snow, how does an antilock system affect the stopping distance?
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Answer D: It can lengthen it, although you keep the ability to steer
On loose surfaces a locked wheel piles up a wedge of gravel or snow that helps it stop, so the antilock stop can be longer even though steering still works.
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28. You correct a rear wheel skid and the back of the vehicle swings the other way. Why?
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Answer D: You steered too far, so be ready to correct back the other way
Over correcting sends the tail past straight and starts a second skid the opposite way. Steer smoothly and be ready to unwind the correction.
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29. An emergency vehicle is stopped on the shoulder ahead with its lights flashing. What does the move over principle require?
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Answer D: Change lanes away from it, or slow down if you cannot
Move over laws ask you to give responders an empty lane, and where traffic or a two-lane road makes that impossible, you slow down instead.
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30. An arrow panel in a work zone shows four flashing lamps in caution mode instead of an arrow. What does that display mean?
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Answer A: Warning only, so pass the work area with caution in your current lane
Caution mode gives a general warning without directing a lane change, so drivers stay alert and pass the activity with care.
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31. You are approaching a narrow bridge where the road has one lane in each direction and no shoulder. What should you do about passing?
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Answer B: Do not pass on or near the bridge
A narrow bridge gives neither vehicle anywhere to go, so passing is prohibited there in the same way as on a hill or in a tunnel.
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32. You are stopped in slow traffic and a motorcycle comes up between the lanes. What should you do?
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Answer D: Hold your position and avoid any sudden lane change
The danger to a rider between lanes comes from a vehicle moving sideways without warning, so staying predictable is what protects them.
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33. How may a two-way left-turn lane never be used?
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Answer B: As a through travel lane or a passing lane
The lane exists only for turning movements, so traveling or passing along it puts you head-on with vehicles turning from the opposite direction.
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34. A yellow sign reading DEAD END is posted at the entrance to a street. What does it mean?
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Answer D: The street ends and there is no way through
A dead end street stops at its far end, so a driver who enters must come back out the same way.
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35. Is it acceptable to drive with your vehicle straddling the line between two lanes?
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Answer D: No, you must drive as nearly as practical entirely within a single lane
A vehicle astride the line takes up two lanes and leaves the drivers around it unable to predict where it will go.