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Alabama Road Signs Practice study materials
Alabama Road Signs Practice study resources

Alabama Road Signs Practice practice questions

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Question 1Regulatory Signs

A red octagon at an intersection always means the driver must do what?

  1. Merge with traffic
  2. Yield to traffic on the right
  3. Come to a complete stop Correct answer.
  4. Slow to 15 mph

Explanation

The eight-sided red sign is the universal STOP sign in Alabama. A driver must bring the vehicle to a full stop before the stop line, crosswalk, or entering the intersection.

Question 2Regulatory Signs

What shape and color identify a YIELD sign in Alabama?

  1. A round yellow sign
  2. A white rectangle with black lettering
  3. A yellow diamond
  4. A downward-pointing red-and-white triangle Correct answer.

Explanation

Yield signs are downward-pointing triangles with a red border and white center. The shape lets drivers recognize the sign even when its face is obscured.

Question 3Regulatory Signs

A white rectangular sign with black letters reading 'SPEED LIMIT 45' tells the driver what?

  1. The minimum lawful speed is 45 mph
  2. 45 mph is a suggested speed
  3. The maximum lawful speed is 45 mph Correct answer.
  4. Trucks must travel 45 mph

Explanation

White regulatory signs with black legends state laws that must be obeyed. A speed limit sign sets the maximum lawful speed under normal conditions.

Question 4Regulatory Signs

A square white sign showing a black 'R' with a diagonal slash through it means what?

  1. No parking at any time
  2. Railroad crossing
  3. Road closed ahead
  4. No right turn Correct answer.

Explanation

A black right-turn arrow with a red circle and slash is the no right turn sign. The slash through the symbol indicates the maneuver is prohibited.

Question 5Regulatory Signs

What does a red circle with a diagonal slash over a black symbol generally indicate?

  1. The action shown is prohibited Correct answer.
  2. The action shown is optional
  3. The action shown is recommended
  4. The action shown is required

Explanation

The red circle and slash is the universal prohibition overlay. Whatever symbol appears inside is something the driver must not do.

Question 6Regulatory Signs

A yellow diamond-shaped sign is used to do what?

  1. Give directions to a city
  2. State a legal requirement
  3. Warn of a condition ahead Correct answer.
  4. Identify a hospital

Explanation

Yellow diamonds are warning signs that alert drivers to hazards or changing conditions ahead. They call for increased caution rather than stating a law.

Question 7Regulatory Signs

A white rectangular sign reading 'ONE WAY' with an arrow indicates what?

  1. Parking is allowed on one side only
  2. The road becomes a divided highway
  3. Traffic may travel only in the direction of the arrow Correct answer.
  4. Traffic must turn at the next intersection

Explanation

ONE WAY signs mark streets where all traffic moves in a single direction. The arrow shows that permitted direction.

Question 8Regulatory Signs

A fluorescent yellow-green diamond sign showing pedestrians means what?

  1. A school crossing is prohibited
  2. A pedestrian mall begins here
  3. Sidewalks end here
  4. Pedestrians may be crossing ahead Correct answer.

Explanation

Fluorescent yellow-green is used for pedestrian, bicycle, and school warnings. The sign alerts drivers to watch for people crossing ahead.

Question 9Regulatory Signs

A white sign with black lettering reading 'NO PARKING ANY TIME' means a driver may do what?

  1. Leave the vehicle unattended for short errands
  2. Park only during business hours
  3. Park only with a permit
  4. Stop briefly to load passengers Correct answer.

Explanation

No parking signs prohibit leaving a vehicle unattended. A driver may still stop momentarily to pick up or drop off passengers unless stopping itself is prohibited.

Question 10Regulatory Signs

A red and white sign reading 'DO NOT ENTER' is posted at the end of a roadway. What should a driver approaching it do?

  1. Stop and then proceed
  2. Proceed slowly and watch for oncoming traffic
  3. Turn around and use another route Correct answer.
  4. Honk and continue if the road looks clear

Explanation

DO NOT ENTER marks a roadway where traffic moves toward the driver, such as an exit ramp or one-way street. Entering would put the driver in the path of oncoming traffic.

Question 11Regulatory Signs

A white sign with a red circle and slash over a left-turn arrow is posted at an intersection. What does it require?

  1. Left turns are prohibited Correct answer.
  2. Left turns are permitted after stopping
  3. Left turns are allowed only for buses
  4. Left turns are allowed only during rush hour

Explanation

A red circle with a slash over a turn arrow prohibits that turn. Drivers must choose another route or continue straight if permitted.

Question 12Regulatory Signs

A white sign reading 'KEEP RIGHT' with a black arrow is placed before a median. What does it tell the driver?

  1. Pass other vehicles on the right
  2. Turn right at the next corner
  3. Merge right after the intersection
  4. Stay to the right of the median or barrier Correct answer.

Explanation

KEEP RIGHT signs direct traffic to pass on the right side of a median, island, or obstruction. They keep opposing flows separated.

Question 13Regulatory Signs

A yellow diamond sign shows a black arrow curving to the right. What should the driver expect?

  1. A right turn is required
  2. The road curves to the right ahead Correct answer.
  3. A right exit is one mile ahead
  4. The right lane ends ahead

Explanation

Curve warning signs use a curved arrow to show the direction of the bend ahead. Drivers should reduce speed before entering the curve.

Question 14Regulatory Signs

A white sign reading 'STOP' is posted at a four-way intersection with no stop line. Where must the driver stop?

  1. After checking for cross traffic
  2. At the corner or before entering the crosswalk area Correct answer.
  3. Ten feet before the intersection
  4. Directly in the middle of the intersection

Explanation

When no stop line or crosswalk is present, the driver stops at the point nearest the intersection where the cross traffic can be seen. The stop must occur before entering the intersection.

Question 15Regulatory Signs

A round yellow sign with an X and the letters 'RR' warns of what?

  1. A reduced-speed zone
  2. A rest area ahead
  3. A railroad crossing ahead Correct answer.
  4. A rural route marker

Explanation

The round yellow advance warning sign alerts drivers that a railroad crossing is ahead. Drivers should slow down and prepare to stop if a train is approaching.

Question 16Regulatory Signs

A white sign reading 'YIELD' is posted at the entrance to a roundabout. What must the driver do?

  1. Stop completely before entering
  2. Sound the horn before entering
  3. Slow or stop to let circulating traffic pass Correct answer.
  4. Enter at full speed to merge smoothly

Explanation

Yield signs require drivers to give the right of way to traffic already in the circle. A full stop is only needed if vehicles are approaching.

Question 17Regulatory Signs

A white sign with black lettering reading 'NO U-TURN' is posted on a divided highway. What does it prohibit?

  1. Turning left at the next intersection
  2. Reversing direction within the median opening Correct answer.
  3. Backing into a driveway
  4. Crossing the median on foot

Explanation

No U-turn signs prohibit reversing direction at that location. Drivers must continue to an interchange or intersection where a U-turn is permitted.

Question 18Regulatory Signs

A yellow diamond sign reading 'SLIPPERY WHEN WET' warns the driver to do what?

  1. Increase speed to maintain traction
  2. Turn on hazard lights at all times
  3. Use the left lane only
  4. Reduce speed and avoid sudden braking in wet weather Correct answer.

Explanation

Slippery when wet signs warn that pavement loses traction in rain. Smooth steering and gentle braking help prevent skids.

Question 19Regulatory Signs

A white sign reading 'LEFT LANE MUST TURN LEFT' is posted over a lane. What does it mean for a driver in that lane?

  1. The driver may turn left or go straight
  2. The driver must turn left at the intersection Correct answer.
  3. The driver may continue straight if traffic is light
  4. The driver must merge right immediately

Explanation

Mandatory movement signs require drivers in the designated lane to make the indicated movement. Remaining in the lane commits the driver to the turn.

Question 20Regulatory Signs

A white sign with a red circle and slash over a bicycle symbol is posted along a road. What does it mean?

  1. Bicycles are prohibited from that roadway Correct answer.
  2. A bike lane begins ahead
  3. Bicycles must use the sidewalk
  4. Bicycles have the right of way

Explanation

A prohibition overlay on a bicycle symbol means cyclists are not allowed on that roadway. Such restrictions are typically posted on limited-access highways.

Question 21Regulatory Signs

A driver sees a white sign reading 'STOP HERE ON RED' beside a traffic signal. What does it require?

  1. Ignore the signal and follow the sign
  2. Stop only if a pedestrian is present
  3. Stop only when the light is green
  4. Stop at the sign before proceeding on a red light Correct answer.

Explanation

This sign places the stop line for red-light compliance at the marked point. Drivers must stop there and may proceed only when the signal allows.

Question 22Regulatory Signs

A white regulatory sign reads 'NO PARKING 8 AM TO 6 PM EXCEPT SUNDAYS.' A driver arrives at 10 AM on Saturday. What applies?

  1. Parking is allowed because it is the weekend
  2. Parking is allowed for up to 30 minutes
  3. Parking is allowed only for local residents
  4. Parking is prohibited at that time Correct answer.

Explanation

The sign prohibits parking during the stated hours on all days except Sunday. Saturday at 10 AM falls within the restricted period.

Question 23Regulatory Signs

A yellow diamond sign reading 'LANE ENDS MERGE LEFT' appears beside the right lane. What is the safest response?

  1. Signal and merge left when a safe gap exists Correct answer.
  2. Maintain speed and wait for the lane to end
  3. Move onto the shoulder to pass
  4. Brake sharply and stop in the lane

Explanation

The sign warns that the right lane is ending, so drivers should plan an early, smooth merge into the continuing lane. Signaling and choosing a safe gap reduces conflict.

Question 24Regulatory Signs

A white sign reading 'RIGHT TURN ON RED AFTER STOP' is posted at an intersection. A driver wants to turn right on red. What must occur first?

  1. The driver must wait for a green arrow
  2. The driver must come to a full stop and yield Correct answer.
  3. The driver must sound the horn
  4. The driver must wait for the crosswalk to clear only

Explanation

Right turn on red is permitted only after a complete stop and after yielding to pedestrians and cross traffic. The sign confirms the permitted maneuver and its condition.

Question 25Regulatory Signs

A white sign reading 'WEIGHT LIMIT 10 TONS' is posted on a bridge. What does it regulate?

  1. The maximum combined weight of vehicle and load Correct answer.
  2. The number of passengers allowed
  3. The weight of the cargo alone
  4. The weight of each axle only

Explanation

Weight limit signs restrict the total gross weight of the vehicle plus its load crossing the structure. Overweight vehicles must use another route.

Question 26Regulatory Signs

A white rectangular sign with black lettering reads 'SPEED LIMIT 45.' What does this sign establish?

  1. The maximum lawful speed under normal conditions Correct answer.
  2. The recommended speed for the sharpest curve ahead
  3. The minimum speed a driver must maintain
  4. The speed required only during bad weather

Explanation

A white regulatory speed limit sign sets the maximum lawful speed for that stretch of road under favorable conditions. Drivers may legally drive slower when conditions or safety require it.

Question 27Regulatory Signs

A red and white sign reads 'WRONG WAY.' Where is a driver most likely to encounter it?

  1. Beside a lane reserved for buses only
  2. On the shoulder of a two-lane road with passing allowed
  3. Facing traffic that has entered a one-way road against its direction Correct answer.
  4. At the far end of a dead-end street

Explanation

The WRONG WAY sign is mounted to face drivers who are traveling against the legal direction of a one-way road or ramp. Seeing it means the driver has entered the roadway incorrectly and should stop and back out safely.

Question 28Regulatory Signs

A white sign with black lettering reads 'NO TRUCKS.' What does this sign do?

  1. Prohibits trucks from using that roadway Correct answer.
  2. Directs trucks to the nearest weigh station
  3. Requires trucks to travel in the right lane only
  4. Sets a lower speed limit for trucks only

Explanation

NO TRUCKS is a regulatory prohibition that bars trucks from the roadway where it is posted. It does not impose a speed change or lane assignment; it removes trucks from that route entirely.

Question 29Regulatory Signs

A white sign shows a black symbol of a car with a red circle and slash over it. What does this sign mean?

  1. Only vehicles with two occupants may enter
  2. Motor vehicles are prohibited from this route Correct answer.
  3. Passenger cars must yield to all other traffic
  4. The road ahead is closed to through traffic

Explanation

A red circle with a diagonal slash over a vehicle symbol is the standard regulatory format for a prohibition. It means that class of vehicle may not use the road or facility where the sign is posted.

Question 30Regulatory Signs

A white sign reads 'PEDESTRIANS PROHIBITED.' What does this sign mean?

  1. A pedestrian crossing is located just ahead
  2. Pedestrians have the right of way at all times here
  3. Pedestrians must cross only at the marked crosswalk
  4. People on foot may not use this roadway Correct answer.

Explanation

The word PROHIBITED makes this a regulatory sign that bars pedestrians from the roadway, which is common on freeways and tunnels. It is not a warning about a crossing ahead.

Question 31Regulatory Signs

A white sign with black lettering reads 'DO NOT PASS.' What does this sign require?

  1. Move to the left lane to allow faster traffic by
  2. Sound the horn before changing lanes
  3. Stay in the current lane and do not overtake the vehicle ahead Correct answer.
  4. Speed up to complete any pass already started

Explanation

DO NOT PASS is a regulatory sign that forbids overtaking in that zone, usually because of limited sight distance. A driver must remain behind the vehicle ahead until the restriction ends.

Question 32Regulatory Signs

A white sign with black lettering reads 'KEEP LEFT.' What does it direct a driver to do?

  1. Yield to traffic coming from the left
  2. Pass to the left side of the divider or obstacle Correct answer.
  3. Turn left at the next intersection
  4. Stay in the left lane at all times

Explanation

KEEP LEFT tells drivers to pass on the left side of a median, island, or obstruction. It is a routing instruction about which side of the object to use.

Question 33Regulatory Signs

A white sign reads 'ONE WAY' with an arrow pointing left. What does this sign tell a driver?

  1. The left lane is closed ahead
  2. Drivers must turn left to reach the highway
  3. Traffic on that street moves only to the left Correct answer.
  4. A left turn is prohibited at the next intersection

Explanation

The ONE WAY sign with an arrow shows the single legal direction of travel on that roadway. Every vehicle on it moves in the direction the arrow points.

Question 34Regulatory Signs

A white sign with black lettering reads 'NO PARKING.' A driver wants to stop briefly to buy a newspaper. What does the sign allow?

  1. Parking if the driver stays in the vehicle
  2. Parking for up to five minutes
  3. No stopping of any kind, even briefly
  4. Stopping only long enough to load or unload passengers or goods Correct answer.

Explanation

NO PARKING prohibits leaving a vehicle parked, but it generally still permits a brief stop to load or unload people or property. A NO STOPPING sign would forbid even that.

Question 35Regulatory Signs

A white sign reads 'NO STANDING.' How does this differ from a NO PARKING sign?

  1. It forbids waiting in the vehicle, not just leaving it unattended Correct answer.
  2. It permits parking for up to fifteen minutes
  3. It applies only to commercial vehicles
  4. It forbids stopping to pick up passengers

Explanation

Standing means waiting in a vehicle, whether or not the driver stays inside. NO STANDING therefore bars idling at the curb even with someone at the wheel, while NO PARKING only bars leaving the vehicle.

Question 36Regulatory Signs

A driver approaches a white sign reading 'STOP' at an intersection with a marked stop line. Where must the vehicle stop?

  1. At the edge of the intersecting road
  2. Anywhere within the crosswalk
  3. Past the stop line so the driver can see cross traffic
  4. At the stop line, before the crosswalk Correct answer.

Explanation

When a stop line is painted, it marks the legal stopping point and the vehicle's front must stay behind it. Stopping there keeps the crosswalk clear for pedestrians.

Question 37Regulatory Signs

A driver reaches a four-way stop at the same moment as a vehicle on the right. Both arrived simultaneously. Who should go first?

  1. The vehicle on the left
  2. The vehicle on the right Correct answer.
  3. Whichever driver signals first
  4. The larger vehicle

Explanation

At a four-way stop, when two vehicles arrive at the same time, the driver on the left yields to the driver on the right. Right-of-way at all-way stops follows this rule to keep movements predictable.

Question 38Regulatory Signs

A white sign reads 'YIELD' at a merge lane. Traffic on the main road is steady. What is the correct action?

  1. Stop completely and wait for a signal to change
  2. Maintain speed and force main-road traffic to adjust
  3. Accelerate to the end of the lane and merge abruptly
  4. Slow or stop as needed and enter only when there is a safe gap Correct answer.

Explanation

A yield sign requires the driver to let conflicting traffic go first and to enter only when a safe gap exists. The driver may need to slow or stop, but a full stop is required only when traffic demands it.

Question 39Regulatory Signs

A white sign reads 'TURNING TRAFFIC MUST YIELD TO PEDESTRIANS.' A driver has a green light and wants to turn right. What does the sign require?

  1. Honk so pedestrians clear the crosswalk quickly
  2. Turn only after the light turns yellow
  3. Wait for pedestrians in the crosswalk before completing the turn Correct answer.
  4. Proceed because the green light gives absolute priority

Explanation

The sign reinforces that a turn, even on a green light, must not cut off pedestrians lawfully in the crosswalk. The driver waits until the crosswalk is clear before completing the turn.

Question 40Regulatory Signs

A white sign on a freeway ramp reads 'WRONG WAY' facing a driver. What has most likely happened?

  1. The driver is in a lane reserved for emergency vehicles
  2. The driver has turned onto a ramp against its intended direction Correct answer.
  3. The driver is approaching a mandatory exit
  4. The driver has entered a toll plaza without paying

Explanation

WRONG WAY signs are placed to face traffic that is traveling opposite the legal flow, most often on ramps and one-way roads. Seeing one means the driver should stop immediately and back out carefully.

Question 41Regulatory Signs

A white sign reads 'NO PARKING 7 AM TO 9 AM MONDAY THROUGH FRIDAY.' A driver arrives at 8 AM on Sunday. What applies?

  1. Parking is prohibited unless the driver stays in the car
  2. Parking is allowed because the restriction does not cover Sunday Correct answer.
  3. Parking is prohibited because it is morning
  4. Parking is allowed only for thirty minutes

Explanation

The sign limits the restriction to weekday mornings, so Sunday morning falls outside its terms. A driver may park there on Sunday unless another sign applies.

Question 42Regulatory Signs

A white sign reads 'WEIGHT LIMIT 8 TONS' at a bridge. What does it restrict?

  1. The weight of vehicles during daylight hours only
  2. The weight of cargo only, excluding the vehicle
  3. The total loaded weight of a vehicle using the bridge Correct answer.
  4. The weight of each axle only

Explanation

A posted weight limit caps the total gross weight of a vehicle, including its load, permitted on the structure. Bridges are rated for that combined weight to protect the span.

Question 43Regulatory Signs

A white sign reads 'HEIGHT LIMIT 12 FT 6 IN' before a tunnel. What is the driver's responsibility?

  1. Lower the tire pressure to reduce the vehicle's height
  2. Do not enter if the vehicle and its load are taller than the posted figure Correct answer.
  3. Proceed because height limits apply only to trucks
  4. Enter only if the tunnel is lit

Explanation

A height limit states the maximum clearance, and a vehicle or load exceeding it must not enter. Striking an overhead structure can cause serious damage or injury.

Question 44Regulatory Signs

A white sign reads 'RIGHT LANE MUST TURN RIGHT' above the right lane. A driver in that lane wants to continue straight. What must happen?

  1. The driver must turn right or change lanes before the intersection Correct answer.
  2. The driver may turn right only after a green arrow
  3. The driver may stop in the lane and wait for a gap
  4. The driver may continue straight if no one is turning

Explanation

A mandatory lane-use sign requires every vehicle in that lane to make the indicated movement. A driver who wants to go straight must move to another lane before reaching the intersection.

Question 45Regulatory Signs

A white sign reads 'CENTER LANE' with two arrows pointing in opposite directions. What does this sign describe?

  1. A median used only by emergency vehicles
  2. A lane reserved for passing on the left
  3. A lane where U-turns are mandatory
  4. A two-way left-turn lane shared by traffic from both directions Correct answer.

Explanation

The center lane sign marks a two-way left-turn lane, which drivers from either direction use to begin left turns. It is not a travel or passing lane.

Question 46Regulatory Signs

A white sign reads 'NO TURN ON RED.' A driver has stopped at a red light and wants to turn right. What does the sign require?

  1. Wait for a green light before turning Correct answer.
  2. Turn right after yielding to cross traffic
  3. Turn right only if no pedestrians are present
  4. Turn right after sounding the horn

Explanation

NO TURN ON RED overrides the general permission to turn right after stopping at a red light. The driver must remain stopped until the signal turns green.

Question 47Regulatory Signs

A white sign shows a left-turn arrow inside a red circle with a diagonal slash. What does it prohibit?

  1. U-turns at the next intersection
  2. All turns at that location
  3. Through traffic in the left lane
  4. Left turns at that location Correct answer.

Explanation

The circle-and-slash over a directional arrow is the standard prohibition format for that specific movement. Here it forbids left turns at the intersection where it is posted.

Question 48Regulatory Signs

A white sign reads 'STOP FOR SCHOOL BUS LOADING OR UNLOADING.' How should a driver on an undivided two-lane road respond when a school bus ahead displays flashing red lights?

  1. Slow down and pass with caution
  2. Stop only if children are visible
  3. Pass if the bus is on the opposite side of the road
  4. Stop and remain stopped until the red lights stop flashing Correct answer.

Explanation

On an undivided road, traffic in both directions must stop for a school bus flashing red lights and wait until the lights stop. The flashing red lights, not the driver's judgment about children, control the duty to stop.

Question 49Regulatory Signs

A white sign reads 'DO NOT BLOCK INTERSECTION.' Traffic ahead is backed up beyond the crosswalk. What should the driver do?

  1. Change lanes to get around the backup
  2. Enter the intersection and stop in it until traffic moves
  3. Enter slowly and rely on other drivers to make room
  4. Wait behind the crosswalk until there is room on the far side Correct answer.

Explanation

The sign requires drivers to keep the intersection clear, so a driver should not enter until there is space to clear it completely. Blocking the box obstructs cross traffic and emergency vehicles.

Question 50Regulatory Signs

A white sign reads 'TRUCKS USE LOW GEAR' on a long downhill grade. What is the purpose of this sign?

  1. To limit trucks to a slower posted maximum speed
  2. To help heavy vehicles control speed without overheating the brakes Correct answer.
  3. To require trucks to travel in the lowest gear at all times
  4. To direct trucks to the nearest inspection station

Explanation

On steep downgrades, engine braking in a low gear helps heavy vehicles hold a safe speed and prevents brake fade from continuous use. The sign is a safety direction aimed at trucks.