Illinois SOS Permit Practice Test 28
- Questions35
- Correct to pass28
- Passing score80%
- Minimum age15 years
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1. A traffic signal is dark and you reach the intersection at the same moment as a vehicle on your right. Who goes first?
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Answer A: The vehicle on your right, as at any all-way stop
A dark signal is treated as an all-way stop, and the usual tie-breaker then applies: the vehicle on the right goes first.
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2. What is the rule about leaving a child or a pet in a parked vehicle?
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Answer A: Never do it; the inside can turn deadly hot very quickly
The inside of a parked vehicle heats far faster than the air outside, and cracking a window does not prevent it, so a child or animal must never be left there.
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3. You are traveling a long distance on a highway with three lanes in your direction, at about the speed of the surrounding traffic. Which lane is generally the best choice?
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Answer C: The center lane, which keeps you clear of merging traffic and of overtaking traffic
On a three-lane roadway the center lane avoids both the ramp traffic on the right and the overtaking traffic on the left, so it usually has the steadiest flow.
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4. A driver passes this sign on an entrance ramp while merging onto a freeway. Who has priority?
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Answer B: The traffic already traveling on the freeway
The sign places the duty on the entering driver, who must adjust speed and fit into a gap without forcing through traffic to brake or swerve.
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5. Which steering method gives the most control when you must turn the wheel a long way at low speed?
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Answer C: Hand over hand, feeding the wheel from one hand to the other
Hand over hand keeps both hands on the wheel through a large turn, so you never lose the ability to correct quickly.
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6. What are front fog lights for?
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Answer D: Adding a low, wide beam close to the car when visibility is poor
Fog lights throw a low, wide beam under the fog, which is why they are mounted low and are used only in poor visibility.
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7. In plain words, what is understeer?
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Answer B: The vehicle keeps going straight even though the wheels are turned
Understeer means the front tires have run out of grip, so the vehicle takes a wider line than the one you steered.
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8. At an intersection where turning right on red is permitted and no sign prohibits it, what must you do before turning?
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Answer A: Come to a complete stop and yield to pedestrians and cross traffic
A right turn on red is allowed only after a full stop, and the turning driver must yield to pedestrians in the crosswalk and to traffic already using the intersection.
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9. What do the numbers on a pedestrian countdown display show?
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Answer A: The seconds remaining to finish a crossing already under way
The countdown runs during the pedestrian change interval and shows how many seconds are left before the crossing time ends.
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10. You reach an uncontrolled intersection at the same moment as a vehicle approaching from your left. What should you do?
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Answer A: Proceed, but only once you see that driver slowing
You have the right of way over the vehicle on your left, but a right of way is something the other driver has to give, so confirm it before you commit.
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11. What is a microsleep?
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Answer D: A few seconds of sleep, sometimes with the eyes open
A microsleep is an involuntary lapse of a few seconds during which the driver is asleep and the vehicle travels blind, often without the driver knowing.
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12. Where should a rear-facing infant seat never be placed?
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Answer C: In a front seat with an active passenger air bag
A deploying front air bag strikes the back of a rear-facing seat with enormous force. Rear-facing seats belong in the back seat.
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13. What do zero tolerance laws mean for a driver who is under 21?
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Answer B: They commit a violation at an alcohol level far below the adult limit
Drivers under 21 may not legally drink, so every state sets a limit far below the adult one and treats even a trace reading as a violation. The exact figure is set by each state, and the penalty usually includes losing the license.
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14. Freeway traffic ahead of you has come to a stop. Besides braking early, how can you warn the drivers behind you?
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Answer B: By switching on the hazard lights for a few seconds
A short burst of hazard lights is a recognized way to tell following traffic that the queue ahead has stopped, and it carries much further back than brake lights. Some states restrict hazard lights on a moving vehicle, so use them only for the moment you are slowing.
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15. What is lane splitting?
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Answer B: A motorcycle riding between two lanes of traffic moving the same way
Lane splitting means riding along the line between two lanes of traffic going in the same direction rather than staying within a lane.
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16. You have a steady green ball to turn left, and the oncoming traffic gets a green left arrow. What does that mean for you?
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Answer C: Oncoming vehicles will turn across your path, so you must wait
A green ball is permissive, so when the oncoming side receives a protected arrow those vehicles have priority and you must yield until they clear.
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17. A deer crosses the road in front of you and disappears into the trees. What should you expect?
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Answer B: That other deer are likely to follow it across the very same stretch of road
Deer usually move in groups, so one crossing the road is a warning that more may follow.
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18. You realize you have just gone past your exit on a freeway. What should you do?
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Answer C: Carry on to the next exit and turn around there
A missed exit costs a few minutes, while backing up or cutting across the striped gore area puts you in the path of traffic that is not expecting it.
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19. A line beside your lane is painted about twice the normal width. What does the extra width convey?
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Answer B: Greater emphasis on the restriction it carries
Width is part of the marking code: a wide line carries more emphasis than a normal one, which is why it is used at gores and channelizing lines.
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20. At highway speed, a large object suddenly appears in your lane and there is open space beside you. Which response is often the most effective?
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Answer B: Steer around it, since at speed you can often turn quicker than you can stop
Above roughly 25 mph, stopping distance is long while a lane change takes only a moment. When space is available, a controlled steer around the hazard avoids the impact.
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21. What will the driver have to do at the point this sign refers to?
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Answer C: Slow down and let conflicting traffic go first, stopping if that is what it takes
Further along, the driver has to let conflicting traffic and pedestrians go first, reducing speed and stopping whenever that is necessary to avoid interfering with them.
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22. You are stopped at a red light ready to turn right when a person pushing a stroller steps into the crosswalk. What should you do?
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Answer A: Stay stopped until they have crossed your path
A turn on red gives way to every pedestrian in the crosswalk, and someone pushing a stroller has even less room to react.
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23. As speed rises, which part of the total stopping distance grows the fastest?
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Answer B: The braking distance, which grows far faster than speed itself
Perception and reaction distances grow in step with speed, but braking distance grows roughly with the square of speed, so it dominates at higher speeds.
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24. What does a sign reading Slower Traffic Keep Right require?
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Answer C: Traffic moving slower than the general flow must use the right-hand lane
The sign applies to any vehicle traveling below the speed of the traffic around it, which must keep right so faster vehicles can use the lanes to the left.
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25. What is the minimum uninsured motorist bodily injury coverage required on an Illinois auto policy?
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Answer A: $25,000 per person and $50,000 per accident
Illinois requires uninsured motorist bodily injury coverage of at least $25,000 per person and $50,000 per accident, matching the state's minimum liability limits.
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26. The vehicle you want to pass is traveling close to the speed limit. What should you do?
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Answer C: Stay behind, because a pass may not take you over the limit
The speed limit applies while passing too. If you cannot complete the pass without exceeding it, do not start the pass.
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27. A center lane is bordered by a solid yellow line on the outside and a broken yellow line on the inside, with left-turn arrows painted in it. How may you use that lane?
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Answer A: Only to make a left turn or to prepare for one from either direction
That marking identifies a two-way left turn lane, which may only be used for left turns or to prepare for a left turn and never for travel or passing.
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28. A sign showing a walking figure carries a plaque below it with an arrow slanting down to the right. What does the plaque add?
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Answer B: The crossing is at that very spot
A downward-slanting arrow plaque marks the crossing itself, whereas an AHEAD or distance plaque would place it further along the road.
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29. How should you use your mirrors while another vehicle overtakes you on a multilane road?
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Answer C: Follow it from the inside mirror to the side mirror and then to your own view
Handing the vehicle from one mirror to the next keeps it in sight through the blind spot instead of losing it there.
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30. On a narrow two-lane road a line of vehicles has built up behind you. What is the safe and courteous action?
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Answer D: Pull into a turnout or a safe wide spot and let them go by
A slow vehicle holding up a queue invites risky passing; using a turnout clears the road without anyone having to take a chance.
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31. A sign reads END SCHOOL ZONE. What does it tell a driver?
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Answer A: The regular limit for that road applies again
An end of restriction sign marks the downstream limit of a special zone, after which the ordinary speed limit for that road governs again.
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32. A line of short dashes set closer together than an ordinary lane line runs beside your lane where a ramp leaves the highway. What does a dotted line of that kind convey?
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Answer A: A warning that the lane is about to change function
Dotted lines give guidance or warning about a downstream change, such as a lane that becomes an exit only lane or a lane line carried across an intersection.
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33. The word SCHOOL is painted in large letters across the roadway. What is it doing?
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Answer D: Backing up the signs marking a school zone
Word markings on the pavement reinforce a message that is already signed, and a driver looking at the road ahead cannot miss them.
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34. You want to pass on a two-lane road where several people are walking on the narrow shoulder ahead. What should you consider?
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Answer D: There is no escape room if the pass goes wrong, so wait for a better place
A pass depends on having somewhere to go if it goes wrong, and a shoulder occupied by pedestrians removes that option for both vehicles.
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35. The left-turn signal facing you shows a flashing yellow arrow. What does it mean?
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Answer C: You may turn left after yielding to oncoming traffic and to pedestrians
A flashing yellow arrow permits a left turn but gives no protection, so you must yield to oncoming vehicles and to people in the crosswalk.