I85PREP
⌘ K
Illinois Permit Test study materials
Illinois Permit Test study resources

Illinois Permit Test practice questions

One question at a time. Build your Illinois Permit Test understanding.

First 50 of 199 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Traffic Laws and Rules of the Road

Under Illinois law, what is the maximum speed limit on an interstate highway in a rural area unless otherwise posted?

  1. 55 mph
  2. 70 mph Correct answer.
  3. 65 mph
  4. 75 mph

Explanation

Illinois sets the general rural interstate maximum at 70 mph unless a different limit is posted. Posted signs always control, and lower limits apply in urban areas and construction zones.

Question 2Traffic Laws and Rules of the Road

A steady red arrow pointing left is displayed for your lane. What must you do?

  1. Slow down and turn left if the way is clear
  2. Treat the arrow as a yield sign and proceed with caution
  3. Stop and remain stopped until the arrow changes to green Correct answer.
  4. Stop, then turn left after yielding to oncoming traffic

Explanation

A red arrow is a lane-specific signal that prohibits movement in the direction shown. You must stop and stay stopped until a green arrow or other permissive signal appears.

Question 3Traffic Laws and Rules of the Road

You approach a flashing red traffic signal at an intersection. How should you proceed?

  1. Stop completely, then proceed when it is safe Correct answer.
  2. Continue at the posted speed limit through the intersection
  3. Slow down and proceed without stopping if no traffic is present
  4. Stop only if another vehicle is approaching

Explanation

A flashing red signal operates like a stop sign: come to a full stop, yield the right-of-way, and proceed only when safe. Failing to stop is a violation even when the intersection appears empty.

Question 4Traffic Laws and Rules of the Road

When two vehicles arrive at an uncontrolled intersection at approximately the same time, which vehicle has the right-of-way?

  1. The vehicle that honks first has the right-of-way
  2. The vehicle on the left must yield to the vehicle on the right Correct answer.
  3. The vehicle traveling faster has the right-of-way
  4. The vehicle on the right must yield to the vehicle on the left

Explanation

At an uncontrolled intersection, the driver on the left must yield to the driver on the right. This rule prevents both vehicles from assuming priority at once.

Question 5Traffic Laws and Rules of the Road

How far before a turn must you signal continuously under Illinois law?

  1. At least 200 feet
  2. At least 100 feet Correct answer.
  3. At least 25 feet
  4. At least 50 feet

Explanation

Illinois requires a turn signal for at least the last 100 feet before turning. Signaling earlier is encouraged, and the signal must stay on until the turn is complete.

Question 6Traffic Laws and Rules of the Road

What does a solid yellow center line on your side of the road mean?

  1. Passing is permitted whenever the road is clear
  2. The road is a one-way street
  3. Passing is prohibited when the line is on your side Correct answer.
  4. You may cross the line to make a left turn from any point

Explanation

A solid yellow line on your side marks a no-passing zone for your direction of travel. You may cross it only for a legal turn into a driveway or side road where permitted.

Question 7Traffic Laws and Rules of the Road

At what blood alcohol concentration is a driver age 21 or older legally presumed intoxicated in Illinois?

  1. 0.08 percent or higher Correct answer.
  2. 0.10 percent or higher
  3. 0.05 percent or higher
  4. 0.02 percent or higher

Explanation

For drivers 21 and older, Illinois presumes intoxication at a BAC of 0.08 percent or more. Lower thresholds apply to drivers under 21 and to commercial vehicle drivers.

Question 8Traffic Laws and Rules of the Road

When an emergency vehicle with flashing lights and a siren approaches from behind on a two-way road, what should you do?

  1. Move to the left lane and continue at the same speed
  2. Pull to the right edge of the road and stop until it passes Correct answer.
  3. Stop immediately in your lane of travel
  4. Speed up to stay ahead of the emergency vehicle

Explanation

Drivers must yield to approaching emergency vehicles by pulling as close as practical to the right edge and stopping. Remaining in the travel lane blocks the path the emergency vehicle needs.

Question 9Traffic Laws and Rules of the Road

You are driving on a four-lane highway and a school bus traveling in the opposite direction stops with its red lights flashing on an undivided road. What must you do?

  1. Slow to 20 mph and pass carefully
  2. Stop only if children are visible near the roadway
  3. Stop until the red lights stop flashing Correct answer.
  4. Continue at the same speed because you are in the opposite direction

Explanation

On an undivided road, traffic in both directions must stop for a school bus with flashing red lights. The only exception is on a divided highway with a median separating the directions.

Question 10Traffic Laws and Rules of the Road

How close may you legally park to a fire hydrant in Illinois?

  1. At least 30 feet away
  2. At least 10 feet away
  3. At least 5 feet away
  4. At least 15 feet away Correct answer.

Explanation

Illinois prohibits parking within 15 feet of a fire hydrant so firefighters can access it quickly. The restriction applies even if the hydrant is not clearly marked on the curb.

Question 11Traffic Laws and Rules of the Road

You are entering a freeway from an acceleration lane. What is the correct procedure?

  1. Build speed to match traffic, signal, and merge when there is a safe gap Correct answer.
  2. Merge immediately at the posted ramp speed
  3. Stop at the end of the ramp and wait for an opening
  4. Drive onto the shoulder until a large gap appears

Explanation

An acceleration lane lets you reach a speed close to freeway traffic before merging. Signal your intent and merge smoothly into a gap rather than stopping or entering slowly.

Question 12Traffic Laws and Rules of the Road

When must you dim your high-beam headlights at night?

  1. Only when an oncoming vehicle flashes its lights at you
  2. When an oncoming vehicle is within 500 feet or you are following within 200 feet Correct answer.
  3. When driving on any road with a posted speed limit above 45 mph
  4. Only when driving through a city or town

Explanation

Illinois requires lowering high beams when approaching an oncoming vehicle within 500 feet and when following another vehicle within 200 feet. Dimming prevents glare that can blind other drivers.

Question 13Traffic Laws and Rules of the Road

A school zone sign shows a 20 mph limit during posted hours. Traffic is light and no children are visible. What speed should you travel?

  1. The normal posted speed limit
  2. No faster than 20 mph Correct answer.
  3. Any speed that allows you to stop for a child
  4. 25 mph, since the zone limit is advisory

Explanation

A school zone speed limit is enforceable during the posted hours regardless of whether children are currently visible. The limit exists because children can appear unpredictably.

Question 14Traffic Laws and Rules of the Road

You are driving and your vehicle begins to skid on a wet road. What should you do?

  1. Accelerate to regain traction
  2. Brake hard and steer opposite the direction of the skid
  3. Turn the steering wheel sharply back and forth
  4. Ease off the accelerator and steer in the direction you want to go Correct answer.

Explanation

In a skid, ease off the accelerator and steer where you want the front of the vehicle to go. Hard braking or abrupt steering can worsen the loss of traction.

Question 15Traffic Laws and Rules of the Road

What is the proper way to make a left turn from a two-way street onto another two-way street?

  1. Turn from any lane as long as you signal
  2. Turn from the lane nearest the center line into the lane nearest the center line Correct answer.
  3. Turn from the left lane into the far right lane
  4. Turn from the right lane into the far right lane

Explanation

A left turn between two-way streets should begin in the lane closest to the center line and end in the lane closest to the center line of the new street. This keeps you out of oncoming traffic.

Question 16Traffic Laws and Rules of the Road

When are you permitted to pass another vehicle on the right?

  1. When the vehicle ahead is making a left turn and there is a clear lane or shoulder Correct answer.
  2. When you are on a two-lane road with a broken yellow line
  3. Whenever the vehicle ahead is traveling below the speed limit
  4. Never, under any circumstances

Explanation

Passing on the right is generally prohibited, but it is allowed when the vehicle ahead is turning left and there is room to pass safely on the right. Passing on the shoulder is otherwise restricted.

Question 17Traffic Laws and Rules of the Road

A pedestrian is crossing the roadway in a marked crosswalk without a traffic signal. What is your obligation?

  1. Yield the right-of-way and stop if necessary Correct answer.
  2. Drive around the pedestrian if space allows
  3. Proceed because pedestrians must yield to vehicles at unmarked crossings
  4. Sound your horn so the pedestrian hurries across

Explanation

Drivers must yield to pedestrians in a marked crosswalk and stop when needed to let them cross safely. Honking or driving around them endangers the pedestrian.

Question 18Traffic Laws and Rules of the Road

You are involved in a crash that causes property damage exceeding $1,500. What must you do?

  1. Notify your insurance company but no state agency
  2. Report the crash to the Illinois Department of Transportation within 10 days Correct answer.
  3. Report the crash within 30 days to the local police
  4. Report the crash only if someone was injured

Explanation

Illinois requires a written crash report to the Illinois Department of Transportation within 10 days when damage exceeds $1,500 or someone is injured or killed. Failing to report can affect your driving privileges.

Question 19Traffic Laws and Rules of the Road

You are driving behind a motorcycle at night. Why should you allow extra following distance?

  1. Motorcycles must yield to all other traffic
  2. Motorcycle taillights are always brighter than car taillights
  3. A motorcycle can stop in a shorter distance than a car Correct answer.
  4. Motorcycles are required to travel more slowly than cars

Explanation

Motorcycles can often stop faster than cars, so a following driver needs extra distance to avoid a rear-end collision. A two-second gap is a minimum, and more is wise behind a motorcycle.

Question 20Traffic Laws and Rules of the Road

A driver under age 21 is found to have any trace of alcohol in their system while driving. What is the consequence under Illinois zero-tolerance law?

  1. The driver must complete a defensive driving course with no suspension
  2. The driver receives only a written warning
  3. The driver's license is suspended Correct answer.
  4. The driver is fined but the license is unaffected

Explanation

Illinois applies zero tolerance to drivers under 21, so any measurable alcohol can trigger a license suspension. The law is separate from the adult 0.08 percent standard.

Question 21Traffic Laws and Rules of the Road

You are approaching a railroad crossing with flashing red lights but no gate, and a train has just passed. What should you do?

  1. Wait until the lights stop flashing before crossing Correct answer.
  2. Cross if you can see no second train approaching
  3. Drive around the lowered gate if one is present
  4. Proceed as soon as the train clears your view

Explanation

Flashing red lights mean stop and remain stopped until the lights stop flashing, because a second train may be approaching. Never assume the crossing is clear just because one train has passed.

Question 22Traffic Laws and Rules of the Road

On a roadway with three lanes traveling in the same direction, which lane should you generally use for normal driving?

  1. Any lane, since all lanes are equal for through traffic
  2. The middle lane Correct answer.
  3. The left lane at all times
  4. The right lane only when preparing to exit

Explanation

On a three-lane road in one direction, the middle lane is generally used for through travel. The right lane serves slower traffic and exiting vehicles, and the left lane is for passing.

Question 23Traffic Laws and Rules of the Road

You are stopped at a red light and want to turn right. When is a right turn on red permitted in Illinois?

  1. After stopping, when there is no sign prohibiting it and you yield to traffic and pedestrians Correct answer.
  2. Only when a green arrow is displayed
  3. At any time without stopping if the way appears clear
  4. Only at intersections with a dedicated right-turn lane

Explanation

Illinois permits a right turn on red after a full stop unless a sign prohibits it, provided you yield to pedestrians and cross traffic. The stop is mandatory even when the way looks clear.

Question 24Traffic Laws and Rules of the Road

A driver's license is suspended for a first DUI conviction. Which statement about the suspension is accurate?

  1. The suspension replaces all criminal penalties
  2. The suspension is lifted automatically if the driver completes traffic school
  3. The suspension is separate from any criminal penalties imposed by the court Correct answer.
  4. The suspension applies only if the driver was under 21

Explanation

Administrative license suspension is a civil action by the state and is separate from criminal penalties ordered by the court. A driver can face both the suspension and criminal sanctions for the same offense.

Question 25Traffic Laws and Rules of the Road

You must yield the right-of-way to a transit bus that is re-entering traffic from a bus stop. What is the correct action?

  1. Sound your horn to warn the bus to wait
  2. Maintain your speed so the bus knows your intention
  3. Pass the bus quickly before it pulls out
  4. Slow down and allow the bus to merge when it signals Correct answer.

Explanation

Drivers should slow and yield so a signaling transit bus can re-enter the traffic lane safely. Forcing the bus to wait or speeding past creates a collision risk for boarding passengers and following traffic.

Question 26Traffic Laws and Rules of the Road

In Illinois, what is the maximum speed limit on an interstate highway in a rural area unless otherwise posted?

  1. 65 mph
  2. 55 mph
  3. 75 mph
  4. 70 mph Correct answer.

Explanation

Illinois law sets the maximum speed limit on rural interstate highways at 70 mph unless a different limit is posted. Urban interstate limits are typically lower.

Question 27Traffic Laws and Rules of the Road

When you approach a stop sign at an intersection, where must you come to a complete stop?

  1. At the corner of the intersecting street
  2. At the stop line, or if none, before the crosswalk or intersection Correct answer.
  3. After slowly rolling through the crosswalk
  4. Anywhere within the intersection

Explanation

A stop sign requires a complete stop at the marked stop line. If there is no line, you must stop before the crosswalk or before entering the intersection.

Question 28Traffic Laws and Rules of the Road

What does a flashing yellow traffic signal mean?

  1. The signal is broken; treat it as a four-way stop
  2. Stop and wait for a green light
  3. Slow down and proceed with caution Correct answer.
  4. Yield to cross traffic before proceeding

Explanation

A flashing yellow light warns drivers to slow down and proceed carefully, yielding to pedestrians and cross traffic if necessary. It does not require a stop unless traffic conditions demand it.

Question 29Traffic Laws and Rules of the Road

When two vehicles arrive at an uncontrolled intersection at about the same time, which driver has the right-of-way?

  1. The driver traveling faster has the right-of-way
  2. The driver on the left must yield to the driver on the right Correct answer.
  3. The driver who honks first has the right-of-way
  4. The driver on the right must yield to the driver on the left

Explanation

At an uncontrolled intersection, the vehicle on the left must yield to the vehicle on the right. This rule helps prevent collisions when no signs or signals dictate priority.

Question 30Traffic Laws and Rules of the Road

When you are driving and hear a siren or see flashing lights of an emergency vehicle approaching, what should you do if you are in an intersection?

  1. Proceed through the intersection and then pull over to the right Correct answer.
  2. Speed up to get ahead of the emergency vehicle
  3. Stop immediately in the intersection
  4. Turn left to clear the intersection

Explanation

If you are already in an intersection when an emergency vehicle approaches, you should clear the intersection by proceeding through and then pull over to the right. Stopping in the intersection would block the emergency vehicle and other traffic.

Question 31Traffic Laws and Rules of the Road

What is the proper way to parallel park between two vehicles?

  1. Park with your wheels turned toward the curb
  2. Drive forward into the space and adjust by backing up
  3. Pull alongside the front vehicle, then back into the space while turning the wheel Correct answer.
  4. Have a passenger guide you while you back in quickly

Explanation

To parallel park, you pull alongside the vehicle in front of the space, then back in at an angle while turning the steering wheel, straightening out as you enter. This method positions your vehicle correctly.

Question 32Traffic Laws and Rules of the Road

When may you legally drive in a designated bicycle lane?

  1. When the lane is empty of bicycles
  2. When you are driving a motorcycle
  3. When making a turn or entering or leaving an alley or driveway Correct answer.
  4. When traffic is congested and you need to pass

Explanation

Driving in a bicycle lane is generally prohibited, but you may enter it briefly when turning or when entering or leaving an alley or driveway. You must yield to bicyclists when doing so.

Question 33Traffic Laws and Rules of the Road

What should you do if your vehicle's brakes fail while you are driving?

  1. Shift into neutral and coast to a stop
  2. Apply the parking brake as hard as possible
  3. Turn off the engine immediately
  4. Pump the brakes and downshift to a lower gear Correct answer.

Explanation

If brakes fail, pump the brake pedal to build pressure and downshift to a lower gear to use engine braking. This helps slow the vehicle gradually and safely.

Question 34Traffic Laws and Rules of the Road

When are you required to use your headlights in Illinois?

  1. Only between midnight and 6 a.m.
  2. From sunset to sunrise and when visibility is poor Correct answer.
  3. Only on rural roads
  4. Only when it is raining

Explanation

Illinois law requires headlights from sunset to sunrise and whenever atmospheric conditions make it difficult to see persons or vehicles clearly at a distance of 1,000 feet. This includes fog, rain, and snow.

Question 35Traffic Laws and Rules of the Road

What does a red arrow traffic signal mean?

  1. Stop and do not turn in the direction of the arrow until it changes Correct answer.
  2. Proceed with caution in the direction of the arrow
  3. Yield to oncoming traffic and then turn
  4. Turn after coming to a complete stop

Explanation

A red arrow means you must stop and cannot proceed in the direction indicated until the signal changes to green or a permitted turn is allowed. It is different from a red light that allows a right turn on red after stopping.

Question 36Traffic Laws and Rules of the Road

When driving on a hill where there are no curbs, how should you park your vehicle facing downhill?

  1. Turn the front wheels away from the edge of the road
  2. Turn the front wheels toward the center of the road
  3. Keep the front wheels straight
  4. Turn the front wheels toward the edge of the road Correct answer.

Explanation

When parking facing downhill without a curb, turn the front wheels toward the edge of the road so that if the vehicle rolls, it will be stopped by the shoulder or edge. This is a safety measure to prevent runaway vehicles.

Question 37Traffic Laws and Rules of the Road

What is the required following distance when you are driving behind a large truck?

  1. At least six seconds
  2. At least two seconds
  3. At least four seconds Correct answer.
  4. At least one second

Explanation

Following a large truck requires extra distance because of its limited visibility and longer stopping distance. A minimum four-second following distance is recommended to allow for adequate reaction time.

Question 38Traffic Laws and Rules of the Road

What should you do when you see a pedestrian using a white cane or a guide dog?

  1. Assume the pedestrian will wait for you to pass
  2. Proceed quickly before the pedestrian enters the crosswalk
  3. Honk to alert the pedestrian of your presence
  4. Yield the right-of-way and proceed only when it is safe Correct answer.

Explanation

A white cane or guide dog indicates a person who is blind or visually impaired. You must yield the right-of-way and take extra care to ensure it is safe before proceeding.

Question 39Traffic Laws and Rules of the Road

When are you allowed to use a handheld cell phone while driving in Illinois?

  1. When stopped at a red light
  2. Only to report an emergency Correct answer.
  3. When driving in a rural area
  4. When using a speakerphone feature

Explanation

Illinois law prohibits the use of handheld cell phones while driving, except to report an emergency. Even at a red light or in rural areas, handheld use is not permitted.

Question 40Traffic Laws and Rules of the Road

What does a yellow diamond-shaped sign indicate?

  1. A guide to nearby services
  2. A regulatory requirement such as a speed limit
  3. A warning of a hazard or changing road condition ahead Correct answer.
  4. A construction zone with a reduced speed limit

Explanation

Yellow diamond-shaped signs are warning signs that alert drivers to hazards or changing conditions ahead, such as curves, intersections, or pedestrian crossings. They do not impose regulatory requirements.

Question 41Traffic Laws and Rules of the Road

When you are driving on a two-lane road and a large truck is approaching from the opposite direction, what should you do?

  1. Maintain your speed and lane position exactly
  2. Flash your headlights to warn the truck
  3. Stay slightly to the right of your lane to avoid the truck's wind blast Correct answer.
  4. Move to the left to give the truck more room

Explanation

Large trucks can create wind gusts that push your vehicle. Staying slightly to the right of your lane helps you maintain control and avoid being pushed into oncoming traffic.

Question 42Traffic Laws and Rules of the Road

What should you do if you miss your exit on a freeway?

  1. Stop and wait for a break in traffic to reverse
  2. Make a U-turn at the next median opening
  3. Back up along the shoulder to the exit
  4. Continue to the next exit and turn around Correct answer.

Explanation

If you miss an exit, you should continue to the next exit and find a safe way to turn around. Backing up or stopping on the freeway is illegal and extremely dangerous.

Question 43Traffic Laws and Rules of the Road

What is the correct action when you are driving and a tire blows out?

  1. Hold the steering wheel firmly and slow down gradually Correct answer.
  2. Accelerate to stabilize the vehicle
  3. Turn the steering wheel sharply to the side
  4. Brake hard immediately

Explanation

If a tire blows out, grip the steering wheel firmly and ease off the accelerator to slow down gradually. Hard braking or sharp turns can cause you to lose control.

Question 44Traffic Laws and Rules of the Road

When are you permitted to drive in a carpool lane (High Occupancy Vehicle lane) in Illinois?

  1. When you are driving a hybrid vehicle
  2. When traffic in other lanes is congested
  3. When your vehicle meets the posted occupancy requirement Correct answer.
  4. When you are driving a motorcycle

Explanation

Carpool lanes are reserved for vehicles with the number of occupants specified on the signs, such as two or more. Driving alone in a carpool lane is not allowed unless otherwise posted.

Question 45Traffic Laws and Rules of the Road

What should you do when you are driving and you approach a hill or curve where you cannot see ahead?

  1. Honk your horn continuously
  2. Move to the center of the road for a better view
  3. Slow down and keep to your lane Correct answer.
  4. Speed up to get through quickly

Explanation

When visibility is limited by a hill or curve, reduce speed and stay in your lane so you can react to any hazards. Speeding up or moving toward the center increases the risk of a collision.

Question 46Traffic Laws and Rules of the Road

What is the proper way to use a roundabout?

  1. Yield to traffic entering the roundabout from the left
  2. Stop before entering and wait for a green light
  3. Enter the roundabout and travel counterclockwise
  4. Yield to traffic already in the roundabout and enter to the right Correct answer.

Explanation

At a roundabout, you yield to vehicles already circulating and enter to the right, traveling counterclockwise. This keeps traffic flowing smoothly and safely.

Question 47Traffic Laws and Rules of the Road

When a school bus is stopped with its red lights flashing on a two-lane road, what must you do?

  1. Stop only if children are visible
  2. Pass on the left if the bus is in the right lane
  3. Slow down and pass with caution
  4. Stop and wait until the red lights stop flashing Correct answer.

Explanation

On a two-lane road, you must stop for a school bus with flashing red lights and remain stopped until the lights stop flashing. This protects children entering or leaving the bus.

Question 48Traffic Laws and Rules of the Road

What does a solid white line on the road indicate?

  1. A separation of traffic traveling in opposite directions
  2. A boundary of a parking area
  3. A separation of lanes traveling in the same direction, with crossing discouraged Correct answer.
  4. A lane that can be crossed freely for passing

Explanation

A solid white line separates lanes traveling in the same direction and indicates that lane changes are discouraged. You should cross it only when necessary and safe.

Question 49Traffic Laws and Rules of the Road

When you are driving and you encounter a fog bank, what is the safest action?

  1. Turn on your hazard lights and continue at normal speed
  2. Use high-beam headlights for better visibility
  3. Slow down and use low-beam headlights Correct answer.
  4. Maintain your speed to avoid rear-end collisions

Explanation

In fog, slow down and use low-beam headlights because high beams reflect off the fog and reduce visibility. Hazard lights should not be used while driving unless your vehicle is disabled.

Question 50Traffic Laws and Rules of the Road

What is the correct procedure for making a right turn from a one-way street onto a two-way street?

  1. Turn from the rightmost lane into the rightmost lane Correct answer.
  2. Turn from the left lane into the right lane
  3. Turn from the center lane into any lane
  4. Turn from the right lane into the left lane

Explanation

When turning right from a one-way street onto a two-way street, start from the rightmost lane and complete the turn into the rightmost lane. This maintains lane discipline and avoids conflicts.