I85PREP
⌘ K
Oklahoma Road Signs Practice study materials
Oklahoma Road Signs Practice study resources

Oklahoma Road Signs Practice practice questions

One question at a time. Build your Oklahoma Road Signs Practice understanding.

First 50 of 200 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 1Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

Under Oklahoma law, what must a driver do when approaching a steady red traffic signal at an intersection?

  1. Stop only if other vehicles are already waiting at the intersection
  2. Slow to a rolling speed and continue if the intersection is clear
  3. Come to a complete stop before the crosswalk or stop line, then proceed only when the signal turns green Correct answer.
  4. Sound the horn briefly and continue through the intersection

Explanation

A steady red light is a mandatory stop signal. The driver must halt before the stop line, crosswalk, or entering the intersection, and may proceed only when the light changes to green, unless a permitted turn is allowed after stopping.

Question 2Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white rectangular sign showing a black arrow curving left with the word 'ONLY' means:

  1. All traffic must merge to the left lane
  2. Left turns are prohibited at this intersection
  3. You may turn left only after yielding to oncoming traffic
  4. The lane is reserved for vehicles making a left turn Correct answer.

Explanation

A mandatory direction sign with an arrow and the word ONLY designates the lane for that movement. Drivers in that lane are expected to turn left, and through traffic should use a different lane.

Question 3Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

What is the standard meaning of a red octagonal sign reading STOP at an unmarked rural intersection in Oklahoma?

  1. Come to a complete stop and yield to cross traffic and pedestrians before proceeding Correct answer.
  2. Yield right of way to traffic on the crossroad only if a vehicle is visible
  3. Stop only when a stop line is painted on the pavement
  4. Reduce speed and proceed if no conflicting traffic is present

Explanation

The octagonal STOP sign requires a full stop regardless of whether a stop line is painted. After stopping, the driver yields to cross traffic and pedestrians before entering the intersection.

Question 4Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A downward-pointing red and white triangular sign at an intersection tells the driver to:

  1. Stop completely before entering the intersection
  2. Yield the right of way to traffic and pedestrians already in or approaching the intersection Correct answer.
  3. Prepare for a reduced speed zone ahead
  4. Merge into the nearest lane without slowing

Explanation

The inverted triangle is the YIELD sign. It requires the driver to slow down and give way to cross traffic and pedestrians, stopping only if necessary to avoid a conflict.

Question 5Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white rectangular sign reading 'SPEED LIMIT 65' indicates:

  1. A minimum speed that all vehicles must maintain
  2. A recommended speed for trucks only
  3. The maximum lawful speed under favorable conditions Correct answer.
  4. The speed at which enforcement cameras are triggered

Explanation

A regulatory speed limit sign sets the maximum lawful speed under normal, favorable conditions. Drivers must still reduce speed when weather, traffic, or road conditions require it.

Question 6Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

What does a red circle with a diagonal slash over a black left-turn arrow mean?

  1. Left turns are permitted only during green arrows
  2. Left turns must be made from the right lane
  3. Left turns require a complete stop first
  4. Left turns are prohibited at this location Correct answer.

Explanation

A red circle with a slash is the universal prohibition symbol. Combined with a left-turn arrow, it means left turns are not allowed at that location.

Question 7Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign with the word 'WRONG WAY' in red letters is intended to:

  1. Mark the entrance to a one-way street in the correct direction
  2. Show that a U-turn is permitted ahead
  3. Indicate that the road ahead narrows to one lane
  4. Warn drivers that they are traveling against the direction of traffic Correct answer.

Explanation

The WRONG WAY sign is placed facing drivers who have entered a one-way road or ramp against traffic flow. Seeing it means the driver must stop and turn around immediately.

Question 8Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A regulatory sign reading 'DO NOT PASS' with a black symbol of two cars means:

  1. Passing is prohibited only for trucks
  2. Passing is allowed only for slow-moving farm equipment
  3. Passing is allowed if the oncoming lane is clear for a quarter mile
  4. Passing is prohibited in this zone until the sign is no longer in effect Correct answer.

Explanation

The DO NOT PASS sign establishes a no-passing zone. The restriction stays in effect until a sign or pavement marking indicates the zone has ended.

Question 9Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

You approach an intersection where the traffic signal is dark because of a power outage and a STOP sign is posted on your approach. What is required?

  1. Wait at the intersection until the signal is restored
  2. Proceed through without stopping because the signal is not operating
  3. Stop only if another vehicle arrives at the same time
  4. Treat the intersection as a four-way stop and follow right-of-way rules Correct answer.

Explanation

When a signal is dark, drivers rely on the posted signs. A STOP sign on your approach requires a full stop, and the intersection is handled like an all-way stop using right-of-way rules.

Question 10Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign shows a black arrow pointing straight ahead with the word 'ONLY' over a lane. A driver in that lane who wants to turn right should:

  1. Turn right from that lane after signaling
  2. Turn right from that lane only if no through traffic is present
  3. Change to a lane marked for right turns before the intersection Correct answer.
  4. Stop in the lane and wait for a right-turn arrow

Explanation

A straight-ahead ONLY sign designates the lane for through movement. A driver intending to turn right must move into the appropriate turn lane before reaching the intersection.

Question 11Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A yellow sign reading 'SPEED LIMIT 45' appears below a white 'SPEED LIMIT 55' sign on the same post. How should the driver interpret this?

  1. The 45 mph limit applies only to trucks
  2. The 45 mph limit applies in the zone ahead, replacing the 55 mph limit Correct answer.
  3. Both limits apply and the driver may choose either
  4. The 45 mph figure is a recommended speed, not a legal limit

Explanation

When a lower speed limit sign is posted, it establishes the lawful maximum for the zone it governs. The driver must comply with the lower posted limit once it applies.

Question 12Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

At a four-way stop, you and another vehicle arrive at the same moment from perpendicular directions. Who has the right of way?

  1. The vehicle on the right Correct answer.
  2. The vehicle on the left
  3. The vehicle that sounds its horn first
  4. The vehicle traveling faster

Explanation

At an all-way stop, when two vehicles arrive at essentially the same time, the driver on the left yields to the driver on the right. The first vehicle to stop otherwise proceeds first.

Question 13Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A sign reading 'NO RIGHT TURN ON RED' is posted at an intersection. What does it change about normal right-turn-on-red rules?

  1. It prohibits a right turn after stopping at the red light Correct answer.
  2. It allows a right turn without stopping if traffic is clear
  3. It prohibits right turns only during rush hours
  4. It applies only to vehicles in the left lane

Explanation

Oklahoma generally permits a right turn after a complete stop at a red light unless a sign prohibits it. The NO RIGHT TURN ON RED sign removes that permission at that intersection.

Question 14Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign with a black 'R' inside a circle and a slash through it means:

  1. No parking at any time
  2. Railroad crossing ahead
  3. No U-turn permitted Correct answer.
  4. Rest area closed

Explanation

A red circle with a slash over a U-shaped arrow is the standard no U-turn symbol. The sign prohibits making a U-turn at that location.

Question 15Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

You are driving in the left lane of a multi-lane road and see a white sign reading 'LEFT LANE MUST TURN LEFT.' You intend to continue straight. What should you do?

  1. Turn left and then make a U-turn to resume your route
  2. Change to a through lane before the intersection Correct answer.
  3. Stay in the lane and proceed straight through the intersection
  4. Stop in the lane and wait for a through signal

Explanation

A mandatory-direction sign designates the required movement for that lane. A driver who wants to go straight must move into a lane designated for through traffic before the intersection.

Question 16Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A regulatory sign shows a black truck symbol inside a red circle with a slash. What does it mean?

  1. Truck weigh station ahead
  2. Trucks must reduce speed to 45 mph
  3. Trucks are prohibited from this route Correct answer.
  4. Trucks must use the right lane

Explanation

A red circle with a diagonal slash over a vehicle symbol prohibits that class of vehicle. A truck symbol crossed out means trucks may not use the route.

Question 17Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white rectangular sign reading 'MINIMUM SPEED 40' on an interstate means:

  1. The left lane is reserved for vehicles traveling 40 mph or faster
  2. Drivers must travel at least 40 mph in all weather
  3. Drivers may not travel slower than 40 mph under normal conditions Correct answer.
  4. The speed limit is 40 mph

Explanation

A minimum speed sign sets the slowest lawful speed under normal conditions. Drivers traveling significantly slower can impede traffic flow and may be cited.

Question 18Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

You are approaching a YIELD sign on a freeway on-ramp with traffic already on the mainline. The correct action is to:

  1. Stop completely at the end of the ramp and wait for a gap
  2. Accelerate to the posted limit and enter without checking
  3. Adjust speed to merge into a gap while giving way to mainline traffic Correct answer.
  4. Maintain speed and expect mainline traffic to change lanes

Explanation

A yield sign on an on-ramp requires the entering driver to give way to traffic already on the mainline. The driver should use the ramp to match speed and merge into an available gap.

Question 19Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reading 'ONE WAY' with an arrow pointing right is placed at an intersection. What does it tell a driver?

  1. Right turns are prohibited
  2. Parking is allowed only on the right
  3. Traffic on the cross street flows only to the right Correct answer.
  4. The right lane ends ahead

Explanation

The ONE WAY sign indicates the direction of traffic flow on that roadway. An arrow pointing right means vehicles on that street travel only in that direction.

Question 20Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A driver approaches a stop sign at a T-intersection where the through road continues left and right. After stopping, the driver intends to turn left. The driver should:

  1. Turn from the right side of the through road
  2. Proceed immediately because left-turning traffic has priority
  3. Yield to traffic on the through road before turning Correct answer.
  4. Wait for a green light before turning

Explanation

After stopping at the sign, the driver must yield to vehicles on the through road. Only when a safe gap exists should the driver complete the left turn.

Question 21Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reading 'NO PARKING 8 AM TO 6 PM' is posted along a curb. A driver arrives at 7 PM and leaves the vehicle at the curb. Is the vehicle legally parked?

  1. No, because the sign prohibits parking at all times
  2. No, because parking is never allowed on that street
  3. Yes, but only for 30 minutes
  4. Yes, because the restriction applies only during the posted hours Correct answer.

Explanation

Time-limited parking restrictions apply only during the hours shown on the sign. Outside those hours, the restriction does not prohibit parking unless another sign or rule applies.

Question 22Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

Two vehicles reach a four-way stop. Vehicle A stopped first, but Vehicle B is on the right and also intends to go straight. Who proceeds first?

  1. Vehicle A, because it stopped first Correct answer.
  2. Neither until a police officer directs traffic
  3. The vehicle with the larger engine
  4. Vehicle B, because it is on the right

Explanation

At an all-way stop, the first vehicle to come to a complete stop has the right to proceed first. The right-hand rule applies only when vehicles arrive at essentially the same time.

Question 23Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign shows a black arrow curving right with a red slash through it, mounted beside a green light. What is the effect?

  1. Right turns are prohibited at all times at this intersection Correct answer.
  2. Right turns are permitted on green but prohibited on red
  3. Right turns are permitted only after a complete stop
  4. Right turns are allowed only for buses

Explanation

A prohibition symbol over a turn arrow forbids that movement entirely, regardless of the signal color. A green light does not restore a movement that a regulatory sign prohibits.

Question 24Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A driver on a two-lane road passes a 'DO NOT PASS' sign and then sees a dashed yellow line on their side of the centerline. Which control governs?

  1. Neither, because they conflict
  2. The driver's own judgment about sight distance
  3. The dashed pavement marking, because markings override signs
  4. The posted sign, because the no-passing zone remains in effect until it is ended by a sign or marking Correct answer.

Explanation

A no-passing zone established by a sign remains in effect until a sign or pavement marking indicates it has ended. A dashed line alone does not cancel a posted restriction still in force.

Question 25Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A driver enters an intersection on a green light but the light turns red while the vehicle is still within the intersection. The driver should:

  1. Stop immediately inside the intersection
  2. Wait inside the intersection until the next green
  3. Continue through and clear the intersection Correct answer.
  4. Reverse out of the intersection

Explanation

A vehicle that has lawfully entered the intersection on a green signal should proceed and clear it. Stopping or reversing inside the intersection creates a hazard and blocks cross traffic.

Question 26Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white rectangular sign on an Oklahoma city street reads 'SPEED LIMIT 30.' What does this sign establish for that roadway?

  1. The maximum lawful speed under normal conditions Correct answer.
  2. The speed required to clear the intersection before the light changes
  3. The suggested speed for wet pavement
  4. The minimum speed permitted in the left lane

Explanation

A white regulatory speed limit sign sets the maximum lawful speed on that roadway under normal conditions. Driving faster than the posted number is a violation unless conditions demand an even lower speed. The number is a legal limit, not a suggestion or a minimum.

Question 27Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

What is the required action when you reach a red octagonal STOP sign at an intersection with no marked crosswalk or stop line?

  1. Stop only if another vehicle is approaching
  2. Slow to about 10 mph and proceed if the way is clear
  3. Come to a complete stop before entering the crosswalk or intersection Correct answer.
  4. Sound the horn and continue through without stopping

Explanation

A STOP sign requires a complete halt before the stop line, before the crosswalk, or, if neither is present, before entering the intersection. Rolling slowly through the sign is a violation even when no traffic is visible. After stopping, you yield to all cross traffic and pedestrians before proceeding.

Question 28Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A triangular YIELD sign is posted where a side road meets a highway. What does this sign require of a driver on the side road?

  1. Slow down and give the right of way to highway traffic Correct answer.
  2. Come to a complete stop before entering the highway
  3. Accelerate to highway speed before merging
  4. Wait for a green signal before entering the highway

Explanation

A YIELD sign requires you to slow down and let traffic on the intersecting road go first, stopping only if necessary to avoid a conflict. It is not a mandatory full stop when the way is clearly open. The obligation is to give way, not merely to reduce speed.

Question 29Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign with a red circle and slash over a black right-turn arrow is posted at an intersection. How does it affect a driver who wants to turn right?

  1. Right turns are permitted after a full stop
  2. Right turns are allowed only for local traffic
  3. Right turns are prohibited at that location Correct answer.
  4. Right turns are allowed only during daylight hours

Explanation

A red circle with a diagonal slash over a maneuver symbol means that maneuver is prohibited. Applied to a right-turn arrow, it forbids turning right at that location entirely. It is not a conditional permission based on time of day or vehicle type.

Question 30Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign shows a black arrow pointing left with the word 'ONLY' beneath it, mounted over a specific lane. What does it require of a driver in that lane?

  1. Turn left from that lane when the light turns green Correct answer.
  2. Turn left only after yielding to oncoming traffic
  3. Make the left turn without signaling
  4. Travel straight ahead unless a left turn is desired

Explanation

A mandatory direction sign with an arrow and 'ONLY' means traffic in that lane must make the indicated movement. A driver in the lane is committed to turning left when the signal permits, not continuing straight. Signaling and yielding rules still apply independently.

Question 31Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white regulatory sign reads 'KEEP RIGHT' with an arrow pointing to the right side of a median. What does it direct a driver to do?

  1. Drive in the right lane at all times
  2. Merge right only when a lane ends
  3. Pass slower traffic on the right
  4. Stay to the right of the median or obstacle Correct answer.

Explanation

A KEEP RIGHT sign directs traffic to pass to the right side of a median, island, or obstruction. It is a mandatory direction sign, not a passing instruction. Ignoring it can put a vehicle on the wrong side of a divider.

Question 32Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

You are driving on an Oklahoma two-lane road and pass a white 'DO NOT PASS' sign with a black symbol of two cars. Immediately beyond the sign the centerline is dashed yellow on your side. What governs your passing decision?

  1. The dashed yellow line, because pavement markings override signs
  2. Neither, because the two controls cancel each other
  3. Whichever appears first along your direction of travel
  4. The sign, because regulatory signs take precedence over conflicting markings Correct answer.

Explanation

Regulatory signs and pavement markings both carry legal force, and a posted DO NOT PASS sign prohibits passing even where the marking might otherwise permit it. Where a sign and a marking conflict, the more restrictive control governs. A driver should treat the zone as a no-passing area until the restriction ends.

Question 33Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reads 'MINIMUM SPEED 45' on an interstate. A driver traveling well below that speed in the right lane is creating a hazard. What does the sign mean for that driver?

  1. The driver must maintain at least 45 mph unless conditions require slower Correct answer.
  2. The driver must exit at the next interchange
  3. The driver may continue if hazard lights are on
  4. The driver must move to the left lane

Explanation

A minimum speed sign sets the slowest lawful speed under normal conditions, intended to keep traffic flowing safely. A driver unable to maintain that speed because of weather, traffic, or vehicle problems may lawfully go slower. Under normal conditions, however, traveling below the posted minimum is a violation.

Question 34Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reads 'NO LEFT TURN' and is posted at an intersection where a green left-turn arrow also exists for a different approach. What does the sign mean for drivers on your approach?

  1. Left turns are prohibited only during rush hours
  2. Left turns are prohibited from your approach at all times Correct answer.
  3. Left turns are allowed after yielding to oncoming traffic
  4. Left turns are allowed only on the green arrow

Explanation

A NO LEFT TURN sign prohibits left turns from the approach where it is posted, regardless of signal indications for that approach. Signal arrows governing other approaches do not create an exception. A driver who needs to go left must use another route or intersection.

Question 35Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

You approach a four-way stop and intend to turn left. Another vehicle arrives from the opposite direction at the same time and goes straight. Who proceeds first?

  1. The other vehicle, because it is going straight Correct answer.
  2. You, because turning vehicles have priority
  3. You, because you arrived at the same moment
  4. Whichever driver signals first

Explanation

At a four-way stop, a vehicle going straight has the right of way over an oncoming vehicle turning left across its path. The left-turning driver must wait until the opposing vehicle has cleared the intersection. Simultaneous arrival does not give the turning driver priority.

Question 36Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign shows a black arrow curving right with the word 'ONLY' and is mounted beside a green light. A driver in that lane wants to continue straight. What must the driver do?

  1. Turn right as the lane requires Correct answer.
  2. Proceed straight because the light is green
  3. Stop and wait for a different signal
  4. Change lanes within the intersection and go straight

Explanation

The mandatory turn sign commits that lane to a right turn, and a green light authorizes only the movement the lane allows. A driver who wanted to go straight should have chosen a through lane before reaching the intersection. Changing lanes inside an intersection is unsafe and generally prohibited.

Question 37Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reads 'NO U-TURN' at a median opening on a divided highway. A driver who missed an exit considers using the opening to reverse direction. What is the correct interpretation?

  1. A U-turn is permitted after coming to a full stop
  2. A U-turn is permitted if no traffic is visible
  3. A U-turn is prohibited at that opening Correct answer.
  4. A U-turn is permitted only for emergency vehicles

Explanation

A NO U-TURN sign prohibits reversing direction at that location for all drivers, regardless of traffic conditions. The restriction exists because the opening lacks the sight distance or geometry for a safe U-turn. A driver who misses an exit should continue to the next legal turnaround.

Question 38Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reading 'LEFT LANE MUST TURN LEFT' is posted on a multi-lane approach, and you are in that lane intending to go straight. What is the safest lawful action?

  1. Change to a through lane before the intersection Correct answer.
  2. Continue straight from the left lane
  3. Stop in the left lane and wait for a gap
  4. Turn left and then make a U-turn to return

Explanation

When a lane is designated for a mandatory turn, drivers who want a different movement must move to an appropriate lane before reaching the intersection. Continuing straight from a turn-only lane creates a conflict with turning traffic. The lane assignment is a legal requirement, not a suggestion.

Question 39Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign with a red circle and slash over a symbol of a bicycle is posted at the entrance to a path. What does it mean?

  1. Bicycles may use the path only at night
  2. Bicycles are prohibited from the path Correct answer.
  3. Bicycles must yield to pedestrians on the path
  4. Bicycles must walk the path

Explanation

A red circle with a diagonal slash over a vehicle or user symbol means that user is prohibited from the facility. Applied to a bicycle symbol, it bars bicycles from the path. It does not impose a yield or time-of-day condition.

Question 40Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A driver on an Oklahoma road sees a white sign reading 'STOP HERE ON RED' at a signalized intersection with a marked stop line. What does the sign require when the light is red?

  1. Stop only if a pedestrian is present
  2. Treat the intersection as an all-way stop
  3. Stop at the stop line and remain until the light turns green
  4. Stop at the sign before the stop line, then proceed when clear Correct answer.

Explanation

A 'STOP HERE ON RED' sign marks the point where a driver must halt before proceeding, typically before turning right on red. The stop must be made at the designated line before the driver checks for conflicting traffic. It does not convert the signal into an all-way stop.

Question 41Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

Two vehicles reach a four-way stop at nearly the same moment from perpendicular directions, and neither has yet come to a complete stop. What rule determines who goes first?

  1. The vehicle traveling faster goes first
  2. The vehicle on the left goes first
  3. The larger vehicle goes first
  4. The vehicle on the right goes first Correct answer.

Explanation

When vehicles arrive at a four-way stop at essentially the same time, the driver on the left yields to the driver on the right. This right-of-way rule resolves the tie when first-to-stop cannot be determined. A driver who clearly stopped first goes first regardless of position.

Question 42Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reads 'SPEED LIMIT 65' on an interstate. Heavy fog reduces visibility to about 100 feet, though traffic is moving at the posted limit. How should a driver apply the sign?

  1. Drive at the posted limit to avoid impeding traffic
  2. Maintain 65 mph because the sign sets a legal floor
  3. Pull onto the shoulder and wait for the fog to clear
  4. Reduce speed below 65 mph to match conditions Correct answer.

Explanation

A posted speed limit is the maximum for normal conditions, and drivers must slow when weather reduces visibility or traction. The basic speed law requires a speed reasonable for existing conditions even below the posted number. Maintaining the limit in dense fog risks a chain-reaction collision.

Question 43Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A white sign reads 'NO PARKING ANY TIME' along a curb, and a driver leaves a vehicle there briefly with hazard lights flashing. How does the sign apply?

  1. The vehicle is legally parked for up to five minutes
  2. The vehicle is legally parked because hazard lights signal a brief stop
  3. The vehicle is legally parked if the driver remains inside
  4. The vehicle is parked illegally regardless of hazard lights Correct answer.

Explanation

A 'NO PARKING ANY TIME' sign prohibits parking at all hours with no grace period. Hazard lights do not convert a prohibited stop into a lawful one, and remaining with the vehicle does not change the restriction. The driver must find a lawful space elsewhere.

Question 44Regulatory Signs (speed limits, stop, yield, prohibition, mandatory direction)

A driver approaches a YIELD sign on a freeway on-ramp where mainline traffic is heavy and fast. The driver cannot merge safely before the ramp ends. What is the correct action?

  1. Stop on the ramp and wait for a safe gap Correct answer.
  2. Force a merge and rely on mainline drivers to slow
  3. Continue at ramp speed and merge at the end of the acceleration lane
  4. Accelerate onto the shoulder and continue alongside traffic

Explanation

A YIELD sign obligates the ramp driver to give way, and when no safe gap exists the driver should slow or stop on the ramp rather than force a merge. Entering the mainline without a gap endangers everyone involved. The obligation to yield rests with the entering driver, not with mainline traffic.

Question 45Warning Signs (curves, intersections, lane transitions, road conditions)

An Oklahoma driver approaches a yellow diamond sign showing a black arrow that curves up and then to the right. What should the driver expect ahead?

  1. A right-side exit ramp leaving the main roadway
  2. A lane that ends and merges into traffic from the right
  3. A sharp right turn requiring a near-stop before entering
  4. A right curve where the road bends gradually to the right Correct answer.

Explanation

This is the standard curve warning sign: a black arrow bending to the right on a yellow diamond. It warns of a curve ahead, and the posted advisory speed plaque, when present, tells you the safe speed rather than a stop requirement. A sharp turn of roughly 90 degrees would instead be shown with a right-angle arrow symbol.

Question 46Warning Signs (curves, intersections, lane transitions, road conditions)

You see a yellow diamond sign with a black arrow that bends sharply to the left and then reverses into a right bend. What does this sign tell you?

  1. A reverse (S) curve begins with the first bend to the left Correct answer.
  2. A single left curve followed by a straight section
  3. A left lane closure ahead on a divided highway
  4. A left-turn-only lane at the next intersection

Explanation

The reverse-curve sign shows an arrow that first bends one way and then the other, warning of two curves in opposite directions. The first bend shown is the one you meet first, so here the road curves left before swinging right. Slow down before entering because the second curve often surprises drivers.

Question 47Warning Signs (curves, intersections, lane transitions, road conditions)

A yellow diamond sign shows a black arrow that turns at roughly a right angle to the right. How should a driver treat this warning compared with a gentle curve sign?

  1. Expect a right lane merge rather than a turn
  2. Expect the road to widen into a passing lane
  3. Expect a much sharper turn and slow more before reaching it Correct answer.
  4. Expect the same geometry as a gentle curve sign

Explanation

The sharp-turn symbol uses an abrupt, near-square bend to indicate a turn much tighter than an ordinary curve. Because the geometry is tighter, speeds must be reduced more, and the advisory speed plaque should be followed closely. The gentle curve sign uses a shallow sweeping arrow instead.

Question 48Warning Signs (curves, intersections, lane transitions, road conditions)

On a rural Oklahoma two-lane road, a yellow diamond sign shows a black arrow bending left with a smaller yellow plaque reading 35 MPH beneath it. What does the plaque mean?

  1. The curve may be taken at 35 mph only when wet
  2. The legal speed limit drops to 35 mph for the next mile
  3. Trucks must slow to 35 mph but cars may keep the limit
  4. The maximum safe speed for the curve under normal conditions is 35 mph Correct answer.

Explanation

An advisory speed plaque gives the highest speed considered safe through the curve under good conditions. It is not a posted regulatory limit, so it does not change the legal speed limit, but exceeding it in the curve is unsafe. In rain, snow, or ice, drivers should go slower than the advisory figure.

Question 49Warning Signs (curves, intersections, lane transitions, road conditions)

A yellow diamond sign depicts a black arrow bending left, and directly below it a black arrow bends right. What condition does this combination warn of?

  1. A curve to the left followed immediately by a curve to the right Correct answer.
  2. A left lane that must merge right after a curve
  3. Two separate curves a mile apart in each direction
  4. A left curve that opens into a right-hand passing lane

Explanation

When two curve arrows are stacked on one warning assembly, the road curves in the direction of the first arrow and then in the direction of the second. The two bends follow one another closely, so speed should be set for the tighter of the two. This differs from a single reverse-curve arrow, which shows both bends within one symbol.

Question 50Warning Signs (curves, intersections, lane transitions, road conditions)

Approaching a hill crest on a two-lane Oklahoma highway, you see a yellow diamond sign with a black arrow that curves right and a second arrow pointing down and to the left beside it. What is being warned?

  1. A right curve followed by a steep upgrade
  2. A right curve combined with a downgrade beyond the crest Correct answer.
  3. A right exit ramp with a downhill grade
  4. A right curve that flattens into level road

Explanation

A curve arrow paired with a downhill grade arrow warns that the curve and the descent occur together. Gravity adds speed on the downgrade, so a vehicle can enter the curve faster than intended. Reduce speed before the crest rather than braking hard inside the curve.