Illinois SOS Permit Practice Test 39
- Questions35
- Correct to pass28
- Passing score80%
- Minimum age15 years
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1. Beyond the point this sign refers to, which movement becomes unlawful?
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Answer D: Driving on the far side of the separation, against the flow
Once the two directions are separated, each roadway carries one-way traffic, so crossing to the other side means driving into oncoming vehicles.
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2. A sign warns that your exit leaves from the left side of the freeway. What should you do?
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Answer D: Move into the left lane in good time before you reach the exit
Left-hand exits are unusual, which is exactly why they are signed well in advance and why the lane changes should be finished early.
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3. You have fitted small convex blind spot mirrors to the door mirrors. What is true of them?
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Answer A: They help a good deal, but you should still look over your shoulder as well
Add-on mirrors reduce but do not remove the blind spot, and they make vehicles look smaller and further away.
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4. At what tread depth should a tire be replaced?
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Answer A: When the tread is worn down to 2/32 of an inch
At that depth a tire loses grip quickly, especially on wet roads, and the built in wear bars or the penny test both show when the point has been reached.
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5. A bicyclist ahead of you puts the left arm straight out to the side. What is being signaled?
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Answer B: A left turn or a move to the left
The left arm held straight out is the bicycle signal for a left turn, so hold back and give the rider room to cross toward the center.
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6. On dry pavement in good weather, what is the smallest following gap you should keep?
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Answer A: About three seconds behind the vehicle ahead
Three seconds is the accepted minimum on dry roads in good visibility, and the gap should be longer in poor conditions.
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7. Your navigation device tells you to turn where a road sign says the turn is closed. What should you do?
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Answer B: Follow the signs and what you can see
A device works from stored data that can be out of date, while signs and the road in front of you show the situation now, so the road wins every time.
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8. Your road ends at a T-intersection with no signs or signals. Who has the right-of-way?
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Answer A: Traffic on the through road, and you must yield before entering
A driver on a road that ends at a T-intersection must yield to traffic on the through road that continues past the junction.
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9. Reaching for a drink in the cup holder is which kind of distraction?
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Answer A: Manual and visual at the same time
Your hand leaves the wheel and your eyes flick down to find the cup, so a task that feels trivial takes away two of the three things driving needs.
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10. Below a speed limit sign is a smaller panel with white numbers on a black background and the word NIGHT. What does it show?
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Answer D: The limit that applies after dark
A night speed limit panel sets a separate legal maximum for the hours of darkness, and its reversed colors mark it as the night figure.
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11. A pedestrian has stepped into a crosswalk at an intersection ahead of you. What is your obligation?
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Answer C: Yield and let the pedestrian finish crossing before you proceed
Drivers must yield to pedestrians in a crosswalk, and an intersection has a legal crosswalk whether or not lines are painted on the pavement.
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12. Which headlight setting should you use in dense fog?
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Answer B: Low beams
High beams reflect off the water droplets in fog and bounce glare back at you, while low beams aim downward and light the road without that mirror effect.
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13. At a railroad crossing with no gates and no flashing lights, the crossbuck is normally combined with which sign?
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Answer C: A yield sign, or a stop sign where an engineering study calls for one
At a passive crossing the crossbuck forms an assembly with a yield sign, or with a stop sign when an engineering study or engineering judgment supports it, so the driver knows who must give way to the train.
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14. You are approaching the crest of a hill and cannot see the road beyond it. What should you do?
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Answer C: Slow down and keep well to the right
Beyond a blind crest there may be a stopped vehicle, a cyclist or an oncoming driver crossing the center line, so reduce speed and hold your own side.
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15. According to Illinois child passenger safety guidance, until what point should a child remain in a belt-positioning booster seat?
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Answer D: Until they are tall enough to properly fit an adult lap and shoulder belt
Illinois child passenger safety guidance recommends a belt-positioning booster seat until the child is tall enough to properly fit an adult lap and shoulder belt.
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16. You are driving down a parking aisle and reach the main lane that runs along the front of the store. What is the usual rule?
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Answer C: The main through lane has the right of way over the vehicles leaving the aisles
In a parking lot the wide lane that runs across the ends of the aisles works like a through road, and drivers leaving an aisle yield to it.
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17. You have turned onto a ramp at night and your headlights pick out large white arrows painted on the pavement pointing straight back at you. What do they mean?
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Answer C: You are traveling against the flow and must turn back
Wrong-way arrows are laid so that a driver going the correct way never sees them head on, so an arrow pointing at you means you are on the ramp backwards.
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18. A tractor-trailer is backing slowly across the roadway to enter a loading dock. What should you do?
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Answer C: Stop and wait until the truck has finished the maneuver
A backing truck driver has a very limited view and the trailer can swing unexpectedly. Trying to squeeze past in either direction risks being crushed.
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19. Why should your thumbs rest along the rim rather than hook inside the spokes?
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Answer D: A jolt can spin the wheel and injure hooked thumbs
A pothole or a dropped wheel can snap the wheel round violently, and thumbs hooked through the spokes are trapped when it happens.
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20. The overhead signal above your lane changes to a steady yellow X. What should you do?
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Answer B: Prepare to move out of that lane
A steady yellow X warns that the lane is about to close, so drivers should get ready to vacate it in favor of an open lane.
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21. What is the correct order of steps as you finish parking an automatic on a grade?
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Answer C: Turn the wheels, set the parking brake, then select park
Setting the parking brake before shifting into park lets the brake take the load, instead of leaving the whole weight of the car on the parking pawl.
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22. A small yellow plaque showing a speed number below a curve warning sign gives
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Answer C: the speed recommended for the condition being warned about
The advisory speed plaque belongs to the warning series and states the speed judged safe for the condition ahead under good circumstances, not a regulatory limit.
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23. While you are still on an entrance ramp, where should your attention be?
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Answer D: Along the ramp ahead and back at the highway traffic in the mirrors and over your shoulder
A merge needs both halves of the picture at once: the ramp curving ahead of you and the traffic you are about to join behind and to your left.
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24. A pedestrian is crossing a wide four-lane street and has reached the lanes on the far side. When may you go on?
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Answer C: Only after the person has finished crossing the roadway
Waiting until the pedestrian has finished crossing is correct in every state and removes any doubt about how much clearance your state demands.
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25. How many alcoholic drinks does it take to begin affecting driving ability?
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Answer C: Even one drink can affect it
A single drink can slow reactions and weaken judgment before you feel any change. Impairment starts long before a person feels drunk.
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26. You are driving on a two-lane road approaching the crest of a hill. Where should you position your vehicle?
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Answer D: Toward the right side of your lane, in case an oncoming vehicle is over the center line
You cannot see what is beyond a crest, and oncoming drivers sometimes drift across the center. Keeping right and slowing gives you a margin.
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27. Which statement about standard drinks is correct?
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Answer C: A standard serving of beer, of table wine and of distilled spirits each contain about the same amount of pure alcohol
Roughly 12 ounces of regular beer, 5 ounces of table wine and 1.5 ounces of 80 proof spirits each contain about the same amount of pure alcohol, so the type of drink does not change the effect.
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28. You are stopped at a stop sign on a two-way stop intersection and the cross street has no stop signs at all. What does that mean for you?
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Answer A: You yield to all cross traffic no matter how long that takes
At a two-way stop only your direction is controlled, so there is no taking turns; you wait for a gap big enough to enter safely.
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29. You feel dizzy and get a headache while driving with the windows closed. What could be the cause and what should you do?
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Answer D: An exhaust leak letting carbon monoxide into the cabin, so open the windows and stop to get fresh air
Carbon monoxide is colorless and odorless, and headache, dizziness and drowsiness are early signs. Get fresh air at once and have the exhaust system inspected.
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30. You are entering a marked school zone during the posted hours. What should you do?
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Answer A: Slow to the school zone limit and watch for children
The school zone limit applies throughout the posted hours, whether or not you can see any children at that moment.
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31. You are turning right onto a one-way street. Which lane of that street should you enter?
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Answer C: The lane closest to the right curb
Even though every lane on a one-way street runs your way, a right turn must end in the lane nearest the right curb; you may change lanes afterwards when it is safe.
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32. When a school bus stops on a two-lane Illinois roadway to load or unload pupils, which vehicles must stop, and how close may they approach?
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Answer A: Vehicles in both directions must stop, at least 20 feet before reaching the bus
On a two-lane Illinois roadway, vehicles in all lanes of traffic must stop for a loading or unloading school bus, at least 20 feet before reaching it.
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33. A regulatory sign reads TURN ON HEADLIGHTS NEXT 15 MILES. What does it require?
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Answer C: Low beam headlights on for that stretch, day or night
Such a section is signed where a road is hard to see along, and the requirement is to run headlights, not just daytime running lamps, through the whole stretch even in bright daylight.
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34. A driver disregards this sign and turns so as to travel against the direction it establishes. What is the immediate danger?
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Answer D: The driver will face traffic head on, because every lane comes the other way
Turning against the established direction puts the vehicle nose to nose with all the traffic on that street, which is why the mistake has to be corrected at once.
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35. Illinois law lists an exception letting a bicyclist ride near the left-hand edge of the roadway instead of the right. When does this exception apply?
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Answer A: On a one-way roadway with two or more marked traffic lanes
Illinois law allows a bicyclist on a one-way roadway with two or more marked traffic lanes to ride as near to the left-hand curb or edge as practicable.