A vehicle ahead begins drifting toward your lane. What is the safest mindset?
Correct answer: Be ready to adjust rather than assume the other driver will correct it
Other drivers can act unexpectedly. Leave yourself time to react instead of relying on a predicted maneuver.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Drive Defensively; printed 83 (physical PDF page 86) ↗
Which method lets you check your following time without estimating feet?
Correct answer: Time your arrival at a fixed roadside point after the vehicle ahead passes it
A fixed object provides a reference for measuring the time between vehicles.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Following Distances; printed 83 (physical PDF page 86) ↗
A dry road becomes slippery as the weather deteriorates. What should happen to your following gap?
Correct answer: Increase it beyond the gap used in good conditions
Poor traction or visibility calls for more space to respond and stop.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Following Distances; printed 83 (physical PDF page 86) ↗
A car follows too closely and a safe open lane is available. What response reduces the conflict?
Correct answer: Move over safely and let it pass
Letting a tailgater pass safely is preferable to competing or brake-checking.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Following Distances; printed 83 (physical PDF page 86) ↗
Traffic is flowing at the limit, but visibility and traction have worsened. How should you choose your speed?
Correct answer: Use a slower speed suited to the conditions
A posted limit does not guarantee that speed is safe in the conditions.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Vehicle Speed; printed 84 (physical PDF page 87) ↗
Before a long drive, which plan best reduces fatigue risk?
Correct answer: Get adequate rest and plan regular stops
Start rested and take breaks. A long uninterrupted drive increases the risk of drowsiness.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Drowsy Driving; printed 84 (physical PDF page 87) ↗
A tired driver says, 'I am safe because I have not actually fallen asleep.' What is wrong with that reasoning?
Correct answer: Drowsiness can slow reactions even while the driver remains awake
Fatigue can impair the ability to brake or steer in time before sleep occurs.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Drowsy Driving; printed 84 (physical PDF page 87) ↗
You must continue a short distance through patchy fog. Which headlight setting does the manual recommend?
Correct answer: Low beams
Use low beams and a speed within the distance you can see; brighter high beams are not the solution.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Fog; printed 84 (physical PDF page 87) ↗
Taillights suddenly appear in dense fog ahead. What should you allow for?
Correct answer: The vehicle could be stopped or moving very slowly
Lights do not reveal the other vehicle's speed or exact road position. Slow down and preserve space.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Fog; printed 84 (physical PDF page 87) ↗
Fog now prevents safe forward travel, and a safe parking area is available off the road. What should you do?
Correct answer: Leave the roadway safely and stop there
When visibility is inadequate, use a safe place off the roadway instead of pressing on.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Fog; printed 84 (physical PDF page 87) ↗
A light rain begins after dry weather. Why should you use extra caution?
Correct answer: Water and road contaminants can reduce grip
The first moisture can mix with dust, oil and other material, reducing grip.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Rain; printed 85 (physical PDF page 88) ↗
What should you do with cruise control when rain makes the pavement slippery?
Correct answer: Turn it off and control speed yourself
The manual advises switching cruise control off in rain and other slippery conditions.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Rain; printed 85 (physical PDF page 88) ↗
Which adjustment helps reduce hydroplaning risk as water accumulates on the road?
Correct answer: Reduce speed before traction is lost
Lower speed helps tires maintain contact with the road; abrupt control inputs add risk.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Rain; printed 85 (physical PDF page 88) ↗
Water covers an underpass on your usual route. What is the safest choice?
Correct answer: Find another route instead of driving into the water
You cannot reliably judge the water's depth or current from the driver's seat.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Rain; printed 85 (physical PDF page 88) ↗
You are driving a car towing a trailer out of a sheltered area into an exposed stretch during gusty weather. What should you anticipate?
Correct answer: A wind change requiring lower speed and controlled steering correction
Exposure to gusts can change suddenly. Trailers and other large profiles are especially affected.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — High Winds; printed 85 (physical PDF page 88) ↗
Your windshield has a small clear patch but the rest of the windows and lamps remain snow-covered. What should you do before leaving?
Correct answer: Clear the windows and lights and fully defrost the windshield
You need an unobstructed view, and other road users need to see your lights.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Winter Driving; printed 85 (physical PDF page 88) ↗
Most pavement is dry, but you are approaching a shaded bridge on a freezing day. What should you expect?
Correct answer: Ice may remain there after other pavement has cleared
Bridges, shaded locations and overpasses can have different traction from nearby roadway.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Winter Driving; printed 85 (physical PDF page 88) ↗
Which items are useful preparations for a trip where winter stranding is possible?
Correct answer: A blanket, food and a shovel
Basic survival supplies can help if a winter trip is interrupted.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Winter Driving; printed 85 (physical PDF page 88) ↗
Your car has snow tires. What should you conclude about travel on an icy road?
Correct answer: You still need lower speed and extra spacing
Traction equipment does not eliminate the hazards of bad road conditions.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Winter Driving; printed 85 (physical PDF page 88) ↗
Before winter travel, which systems deserve a working-condition check?
Correct answer: Brakes, lights, wipers and defrosters
Reliable braking and visibility equipment are essential in winter conditions.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Weather Conditions — Winter Driving; printed 85 (physical PDF page 88) ↗
What is the purpose of the speed-change lane at an expressway entrance?
Correct answer: To adjust speed and find a safe opening before merging
Signal, observe traffic and use the lane to prepare a safe merge.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Special Driving Situations and Hazards — Expressway Driving; printed 86 (physical PDF page 89) ↗
You have reached the proper exit speed-change lane. Where should you make the speed reduction for the exit?
Correct answer: In that lane as you approach the exit
Prepare early, use the correct lane and reduce speed for the exit without a last-second maneuver.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Special Driving Situations and Hazards — Expressway Driving; printed 86 (physical PDF page 89) ↗
You pass your expressway exit before you can leave safely. What should you do?
Correct answer: Continue to the next available exit
A missed exit is not a reason to reverse or make an abrupt crossing maneuver.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Special Driving Situations and Hazards — Expressway Driving; printed 86 (physical PDF page 89) ↗
Two lanes lead to a construction lane closure, and traffic is dense and slow. With no contrary directions, what merge pattern does the manual advise?
Correct answer: Use both lanes to the merge point, then alternate turns
In dense traffic the advised zipper merge uses both lanes to the reduction point and alternates vehicles.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Special Driving Situations and Hazards — Expressway Driving; printed 86 (physical PDF page 89) ↗
What does choosing a speed within your headlights' useful range help you do?
Correct answer: Stop within the roadway distance you can see
Do not drive so fast that a hazard becomes visible too late to stop.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Night Driving; printed 87 (physical PDF page 90) ↗
Your dashboard is very bright during a dark-road drive. What adjustment supports visibility outside?
Correct answer: Dim the dashboard and avoid unnecessary interior lighting
Reducing interior brightness helps limit distracting reflections and glare.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Night Driving; printed 87 (physical PDF page 90) ↗
Your headlights look dull and unevenly aimed. What should be addressed before night driving?
Correct answer: Clean them and have their aim corrected
Clean, properly aimed headlights are part of a useful view of the road.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Night Driving; printed 87 (physical PDF page 90) ↗
Tall seasonal vegetation limits your view of a rural intersection. What approach is safest?
Correct answer: Reduce speed and check both directions before entering
Limited sight lines call for a cautious approach rather than assumptions about unseen traffic.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Rural Intersections; printed 87 (physical PDF page 90) ↗
A sharp curve is approaching on a slick road. When is the best time to make the main speed reduction?
Correct answer: Before entering the curve
Slow before the curve and avoid abrupt braking that can upset traction.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Curves; printed 87 (physical PDF page 90) ↗
An oncoming vehicle enters your lane. Which immediate response does the manual describe?
Correct answer: Slow down, move toward the right when possible and sound the horn
Reduce the conflict and warn the other driver; the manual directs the evasive path to the right.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Head-on Approaches; printed 87 (physical PDF page 90) ↗
The rear of your car begins sliding to the right on a slippery surface. What steering response helps recovery?
Correct answer: Steer toward the right while easing the input that caused the skid
For this rear-end slide, steer in the direction the rear is sliding, then straighten as traction returns.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Skidding; printed 87 (physical PDF page 90) ↗
Your right wheels drift onto the shoulder. Which response avoids making the situation worse?
Correct answer: Hold the wheel firmly, ease off speed and return gently when safe
An abrupt return can send the car across the roadway. Slow and make a controlled recovery.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Driving Off the Pavement; printed 87 (physical PDF page 90) ↗
Smoke begins coming from your vehicle while driving. What should you do once you can stop off the road?
Correct answer: Shut off the engine, move away and call 911
The manual directs you away from the vehicle and to emergency help, not to fight the fire yourself.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Fire; printed 88 (physical PDF page 91) ↗
Why should you not leave a fuel-burning car running in a garage attached to a house?
Correct answer: Exhaust can expose people to deadly carbon monoxide
Carbon monoxide is a serious exhaust hazard. Do not run the vehicle in an attached garage.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Carbon Monoxide Poisoning; printed 88 (physical PDF page 91) ↗
A power line falls onto your car after a crash. There is no fire or other immediate need to escape. What should occupants do?
Correct answer: Stay in the vehicle and wait for emergency help
Leaving can create an electrical path through your body. The manual distinguishes this from an immediate fire escape.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Electricity; printed 88 (physical PDF page 91) ↗
Which routine reduces fire risk when refueling a car?
Correct answer: Stop the engine, avoid smoking and remain with the pump
Fueling calls for controlling ignition sources and attending the pump.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Explosive Fire Hazard; printed 88 (physical PDF page 91) ↗
A tire fails suddenly while you are traveling at road speed. What should you prioritize?
Correct answer: Maintain steering control and ease off the accelerator without sudden braking
Keep a firm grip and reduce speed in a controlled way before pulling off safely.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Equipment Failure — Blowouts; printed 88 (physical PDF page 91) ↗
Your headlights suddenly go out on a dark road. What is the safest objective?
Correct answer: Use remaining warning lights and get safely off the road
Remaining lights can help make the vehicle visible while you get out of the traffic stream.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Equipment Failure — Headlight Failure; printed 89 (physical PDF page 92) ↗
An automatic car's accelerator remains stuck. Which transmission choice helps stop engine power from continuing to drive the wheels?
Correct answer: Neutral
The manual identifies neutral and controlled braking when the pedal will not release. Avoid selecting Park or Reverse in motion.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Equipment Failure — Stuck Gas Pedal; printed 89 (physical PDF page 92) ↗
An angry driver is nearby while you are stopped behind another vehicle. Why leave room ahead?
Correct answer: So you retain space to move out if a safe escape becomes necessary
Keeping an exit option can reduce entrapment. Do not engage or retaliate against the aggressive driver.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Aggressive Driving; printed 89 (physical PDF page 92) ↗
A person is walking near the road edge. What safety approach should a driver take?
Correct answer: Leave space and be prepared to yield rather than pass unnecessarily close
Drivers should anticipate pedestrian movement and avoid needlessly close approaches.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Pedestrians; printed 40 (physical PDF page 43) ↗
You are about to back out of a driveway where children are playing nearby. What deserves particular attention?
Correct answer: Children who may move into the vehicle's path
The manual calls for exceptional watchfulness when backing near children.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Children; printed 41 (physical PDF page 44) ↗
Before turning left across an approaching motorcycle's path, what is especially important?
Correct answer: Confirm the rider's approach and intent rather than underestimate its speed
A motorcycle's small size can make its speed and position harder to judge.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Motorcycles — Intersections; printed 41 (physical PDF page 44) ↗
A motorcycle uses only part of a lane that looks wide enough for your car too. What should you do?
Correct answer: Leave the rider the lane instead of squeezing alongside
The rider needs room to maneuver within the lane, including room to avoid hazards.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Motorcycles — Lane Sharing; printed 41 (physical PDF page 44) ↗
A motorcycle is passing your car. What should you do during the maneuver?
Correct answer: Maintain a steady speed and lane position
A predictable course lets the passing rider complete the maneuver safely.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Motorcycles — Passing; printed 41 (physical PDF page 44) ↗
A motorcycle ahead approaches loose gravel near a pothole. Why should you leave maneuvering room?
Correct answer: The rider may slow or change position within the lane
Surface hazards can require motorcycle movements that a car driver might not expect.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Motorcycles — Road Conditions; printed 42 (physical PDF page 45) ↗
A bicyclist moves away from the road edge near drainage grates. What should you recognize?
Correct answer: The rider may be avoiding a hazard and need room
Debris, rough surfaces and grates can make a position closer to the lane center safer for a bicycle.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Bicycles — Road Hazards; printed 43 (physical PDF page 46) ↗
You have parked beside moving traffic and bicycle traffic. What should you do before opening the driver's door?
Correct answer: Check behind for approaching road users and open only when clear
Check for approaching bicycles and vehicles before putting a door into their path.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Bicycles — Opening Doors; printed 43 (physical PDF page 46) ↗
You have been lingering beside a truck where its driver may not see you. What safer positioning goal should guide you?
Correct answer: Avoid its blind spots and remain visible to the driver
Large vehicles have substantial blind areas. Avoid remaining hidden alongside or behind them.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Large Vehicles — Blind Spots; printed 45 (physical PDF page 48) ↗
A truck signals right and leaves an opening between its right side and the curb. What should you do?
Correct answer: Stay out of the opening and give it turning room
A truck may need a wide approach to complete a right turn.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Large Vehicles — Turns; printed 45 (physical PDF page 48) ↗
Why should you avoid shining high beams at a truck you are following?
Correct answer: Its large side mirrors can reflect the glare into the driver's eyes
Reflected glare can interfere with the truck driver's vision.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Large Vehicles — Night Driving; printed 45 (physical PDF page 48) ↗
You see farm equipment far ahead while traveling at ordinary highway speed. Why should you begin preparing early?
Correct answer: The speed difference can close the gap surprisingly quickly
A large difference in speed leaves less time than the apparent distance may suggest.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Slow-Moving Vehicles — Closing Speeds; printed 46 (physical PDF page 49) ↗
You are following a tractor past fields with unmarked access points. What movement should you anticipate?
Correct answer: A wide turn into an entrance that is not obvious from behind
Slow-moving equipment may turn into unmarked entrances; leave room and pass only when safe.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Slow-Moving Vehicles — Turns and Passing; printed 46 (physical PDF page 49) ↗
You approach a horseback rider beside the roadway. Which behavior is safest?
Correct answer: Pass cautiously without sounding the horn and be ready to stop
Sudden noise can frighten a horse and create an unpredictable movement.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Horseback Riders; printed 47 (physical PDF page 50) ↗
Your car is safely on the shoulder of a busy high-capacity road with no fire or other immediate threat. What does the manual recommend while waiting for help?
Correct answer: Stay belted inside, use hazard lights and call for assistance
The higher-capacity-road protocol keeps occupants protected while responders come.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Stranded Motorists' Safety Protocols — Higher-Capacity Roads; printed 90 (physical PDF page 93) ↗
On a quiet low-capacity road, leaving a disabled car is necessary and can be done safely. Which exit is preferable?
Correct answer: The side away from approaching traffic, then move to a protected place
The manual makes leaving conditional on necessity and safety, and directs occupants away from traffic.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Stranded Motorists' Safety Protocols — Lower-Capacity Roads; printed 90 (physical PDF page 93) ↗
An object hanging inside the car blocks part of your forward view. What should you do before driving?
Correct answer: Remove or reposition the obstruction
A clear windshield is not enough if objects inside still block the view.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Required Equipment — Windows; printed 92 (physical PDF page 95) ↗
A wiper leaves a broad uncleared strip across your view. What should be done before a wet-weather trip?
Correct answer: Restore its proper clearing action
Wipers must clear moisture properly to support a usable view of the roadway.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Required Equipment — Wipers; printed 92 (physical PDF page 95) ↗
Which condition shows that the parking brake needs attention before relying on it on a hill?
Correct answer: It cannot hold the vehicle on the grade
The parking brake needs to hold the vehicle on a slope; a brake that cannot do so is not functioning adequately.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Required Equipment — Brakes; printed 92 (physical PDF page 95) ↗
You discover that a front turn-signal lamp is not working before a trip. What is the safety priority?
Correct answer: Restore the signal so other drivers can recognize your intended turns
Working front and rear signals help people around the vehicle understand its intended movements.
Source: Illinois Rules of the Road 2026, July 2026, DSD A112.47; Required Equipment — Turn Signals; printed 92 (physical PDF page 95) ↗
