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

PA Road Signs Practice practice questions

One question at a time. Build your PA 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

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

  1. An advisory speed for curves only
  2. The maximum lawful speed under favorable conditions Correct answer.
  3. A minimum speed that all traffic must maintain
  4. The speed limit that applies only to trucks

Explanation

A white rectangular sign with black legend showing 'SPEED LIMIT' and a number sets the maximum lawful speed for that roadway under ideal conditions. Drivers must not exceed it, but may legally drive slower when conditions require. Advisory speeds for curves appear on yellow warning signs, not on this regulatory sign.

Question 2Regulatory Signs

You approach a red octagonal sign and come to a complete stop at the marked line. When may you proceed?

  1. Immediately, since stopping satisfied the sign
  2. Only after yielding to traffic and pedestrians with the right of way Correct answer.
  3. Only when a green light appears overhead
  4. Only after the vehicle behind you also stops

Explanation

The octagonal STOP sign requires a full stop, after which the driver must yield to any cross traffic and pedestrians before entering the intersection. Stopping alone does not grant the right of way. Proceeding safely requires judging gaps in traffic and honoring pedestrian crossings.

Question 3Regulatory Signs

A red triangular sign with white lettering reading 'YIELD' requires you to do what?

  1. Stop completely before every entry
  2. Sound your horn before entering the intersection
  3. Accelerate to merge ahead of crossing traffic
  4. Slow or stop as needed and give way to cross traffic Correct answer.

Explanation

The YIELD sign, an inverted red triangle, means slow down or stop if necessary and let traffic on the intersecting road go first. A full stop is required only when traffic or conditions demand it. Once a safe gap exists, the driver may proceed.

Question 4Regulatory Signs

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

  1. The road curves to the right ahead Correct answer.
  2. A right lane ends ahead
  3. A right turn is prohibited ahead
  4. Traffic must merge right

Explanation

Yellow diamond signs are warnings, and a curved arrow on one indicates that the roadway bends in the direction shown. The driver should reduce speed before reaching the curve. Prohibitions and lane assignments appear on white or black-and-white regulatory signs instead.

Question 5Regulatory Signs

What does a solid yellow center line on a two-lane road indicate?

  1. It marks the edge of the roadway
  2. Passing is prohibited for traffic in both directions Correct answer.
  3. Passing is permitted in both directions
  4. Traffic may cross it freely to make U-turns

Explanation

A solid yellow center line means neither direction of traffic may cross it to pass. Yellow lines separate opposing traffic, and a solid line on your side bars passing. Broken yellow lines permit passing when safe.

Question 6Regulatory Signs

A white rectangular sign shows a black symbol of a pedestrian with a diagonal slash through it. What does this sign mean?

  1. A pedestrian crossing is ahead
  2. Pedestrians have the right of way here
  3. Pedestrians must use the sidewalk
  4. Pedestrians are prohibited from crossing here Correct answer.

Explanation

A regulatory sign with a red circle and slash over a symbol indicates that the depicted action or user is prohibited. A pedestrian symbol crossed out means pedestrians may not cross at that location. Warning signs for pedestrian crossings are yellow diamonds without a slash.

Question 7Regulatory Signs

A black-and-white rectangular sign reading 'ONE WAY' with an arrow points to the left. What does it tell you?

  1. Traffic on that street moves only in the direction of the arrow Correct answer.
  2. The left lane is closed ahead
  3. Left turns are prohibited
  4. You may turn left against traffic

Explanation

The ONE WAY sign indicates that all traffic on that roadway travels in the direction the arrow points. A driver must not enter that street facing against the arrow. The sign is regulatory and is often mounted at intersections with one-way streets.

Question 8Regulatory Signs

A red circle with a diagonal slash over a black left-turn arrow appears on a white sign. What does it mean?

  1. Left turns are permitted with caution
  2. Left turns are prohibited Correct answer.
  3. The left lane is for turning only
  4. A left curve is ahead

Explanation

A white regulatory sign bearing a red circle and slash over a maneuver symbol prohibits that maneuver. With a left-turn arrow inside, it means no left turns at that location. Drivers must use another route or continue ahead as permitted.

Question 9Regulatory Signs

You are driving and see a white rectangular sign reading 'NO PARKING ANY TIME'. Where does the restriction apply?

  1. Only on weekdays
  2. Only when a yellow curb is also present
  3. At all times along the side of the road where the sign is posted Correct answer.
  4. Only during posted business hours

Explanation

The phrase 'any time' means the no-parking restriction is in force 24 hours a day on the side of the road governed by the sign. Drivers may not leave a vehicle there even briefly. Time-limited restrictions would instead specify hours on the sign.

Question 10Regulatory Signs

A white sign with a red circle and slash over the letter 'R' followed by a right-turn arrow means:

  1. Right turns on red are permitted after stopping
  2. A right lane must turn right
  3. Right turns are prohibited Correct answer.
  4. Right turns are permitted only with a green arrow

Explanation

The red circle and slash is the universal prohibition symbol, and combined with a right-turn arrow it bans right turns at that intersection. The sign overrides any general permission to turn right on red. Drivers must wait for a permitted movement or choose another route.

Question 11Regulatory Signs

A yellow diamond sign shows a black symbol of a traffic signal. What is the driver being warned about?

  1. A signalized intersection is ahead Correct answer.
  2. The signal ahead is broken
  3. A railroad crossing is ahead
  4. A stop sign is ahead

Explanation

A yellow warning sign depicting a traffic signal alerts drivers that a signal-controlled intersection is approaching, often where sight distance is limited. The driver should be prepared to stop if the signal changes. Railroad crossings use a distinct round yellow sign with an X and 'RR'.

Question 12Regulatory Signs

A white rectangular sign reads 'KEEP RIGHT' with an arrow. What action does it require?

  1. Stay in the right lane at all times
  2. Yield to traffic on the right
  3. Turn right at the next intersection
  4. Pass to the right of the median or obstacle ahead Correct answer.

Explanation

KEEP RIGHT is a regulatory sign directing traffic to pass to the right side of a median, island, or other obstruction. It does not require remaining in the right lane for the whole trip. Drivers must follow the direction indicated to avoid the obstacle.

Question 13Regulatory Signs

A white sign displays a black symbol of a bicycle inside a red circle with a slash. What does it mean?

  1. Bicycles must use the shoulder
  2. A bicycle lane begins ahead
  3. Bicycles are prohibited from that path or roadway Correct answer.
  4. Bicyclists have the right of way

Explanation

A symbol enclosed in a red circle with a diagonal slash indicates that the depicted user or action is not allowed. A crossed-out bicycle means cyclists may not use that facility. A bicycle lane or route is instead indicated by a sign without a slash.

Question 14Regulatory Signs

A yellow diamond sign shows a black arrow bending sharply to the left with a smaller plaque below reading a speed such as '25 MPH'. What is the purpose of that speed plaque?

  1. It is the minimum speed allowed in the curve
  2. It sets the enforceable maximum speed for the curve
  3. It applies only to trucks in the curve
  4. It is an advisory speed recommended for the curve Correct answer.

Explanation

A speed shown on a yellow plaque beneath a warning sign is an advisory speed, the recommended speed for safely negotiating the curve under good conditions. It is not an enforceable posted limit. Drivers should slow to roughly that speed before entering the curve.

Question 15Regulatory Signs

A white rectangular sign reads 'DO NOT PASS'. Where does the restriction typically take effect?

  1. Only when a school bus is present
  2. From the sign until a passing-permitted condition or another sign ends it Correct answer.
  3. Only during nighttime hours
  4. Only after the next intersection

Explanation

DO NOT PASS is a regulatory sign that prohibits passing beginning at the sign and continuing until the restriction ends, often where sight distance is limited. Drivers must remain behind slower vehicles until passing is again permitted. Pavement markings such as a solid yellow line usually reinforce the restriction.

Question 16Regulatory Signs

A white sign with black lettering reads 'LEFT LANE MUST TURN LEFT'. What does this require of a driver in that lane?

  1. The driver must merge right before the intersection
  2. The driver may continue straight if desired
  3. The driver must turn left from that lane Correct answer.
  4. The driver must stop and wait for a signal

Explanation

A mandatory movement sign with the word 'MUST' requires drivers in the designated lane to make that movement. A driver in the left lane governed by this sign must turn left rather than proceed straight. Drivers intending to go straight should change lanes earlier.

Question 17Regulatory Signs

A round yellow sign with a black X and the letters 'RR' is posted before a crossing. What must a driver do?

  1. Look and listen for trains and yield to any approaching train Correct answer.
  2. Speed up to cross the tracks quickly
  3. Stop completely before the tracks in all cases
  4. Sound the horn before crossing

Explanation

The round yellow railroad advance warning sign alerts drivers that tracks are ahead. Drivers should slow, look and listen, and yield to any train. A full stop is required only where a STOP sign or lowered gate controls the crossing, or when a train is approaching.

Question 18Regulatory Signs

A white sign with a red circle and slash over a symbol of a truck indicates:

  1. Trucks must use the right lane
  2. Trucks are prohibited from that route Correct answer.
  3. A truck weigh station is ahead
  4. Trucks must reduce speed

Explanation

Enclosing a vehicle symbol in a red circle with a slash prohibits that class of vehicle from the roadway or route. A crossed-out truck means trucks may not proceed there. Lane requirements or weigh stations are indicated by different signs.

Question 19Regulatory Signs

A white rectangular sign reading 'SPEED LIMIT 55' is posted, and a separate white sign below reads 'TRUCKS 45'. How should a truck driver interpret these?

  1. The truck limit applies only when passing
  2. The truck may travel 55 mph like other traffic
  3. The truck is limited to 45 mph on that road Correct answer.
  4. The truck must travel at least 45 mph

Explanation

When a separate sign sets a lower limit for trucks, that lower figure governs truck traffic on that roadway. The general limit applies to other vehicles. Truck drivers must observe the specific posted limit for their vehicle class.

Question 20Regulatory Signs

A white sign shows a black arrow pointing down and to the right with the word 'ONLY'. What does this sign direct?

  1. Parking is permitted on the right
  2. The right lane is closed ahead
  3. Traffic in that lane must turn right Correct answer.
  4. Right turns are prohibited

Explanation

A white sign with a directional arrow and the word 'ONLY' designates a mandatory movement for that lane. Drivers in the lane must turn in the direction shown. The sign is regulatory and is often mounted above or beside the lane it governs.

Question 21Regulatory Signs

A yellow diamond sign shows a black symbol of a pedestrian with a diagonal line through it. How does this differ from a white sign with a crossed-out pedestrian?

  1. The yellow sign requires pedestrians to stop
  2. The white sign warns of a crossing ahead
  3. The yellow sign warns that pedestrians may be present and the symbol is not a prohibition Correct answer.
  4. There is no difference; both prohibit pedestrians

Explanation

Yellow diamond signs are warnings, so a pedestrian symbol on one alerts drivers to watch for people in the area. A red circle and slash on a white regulatory sign, by contrast, prohibits the depicted action. Color and shape determine whether a symbol warns or prohibits.

Question 22Regulatory Signs

You are in a lane marked by a white sign reading 'LEFT TURN ONLY', but you intended to continue straight. What is the safest legal action?

  1. Back up to change lanes
  2. Make the left turn and find a safe route to your destination Correct answer.
  3. Continue straight from the turn-only lane
  4. Stop in the lane and wait for a gap to merge right

Explanation

The 'ONLY' sign makes the left turn mandatory for that lane, so proceeding straight would violate the sign and could cause a collision. The safest legal response is to complete the turn and then reroute. Stopping or reversing in a travel lane creates hazards.

Question 23Regulatory Signs

A white sign reads 'NO TURN ON RED' beneath a traffic signal. A driver wishes to turn right while the signal is red. What governs the movement?

  1. The driver may turn right after a full stop, as is generally allowed
  2. The driver may turn right only from the left lane
  3. The driver must wait for a green signal before turning right Correct answer.
  4. The driver may turn right if no traffic is present

Explanation

The 'NO TURN ON RED' sign removes the general permission to turn right after stopping at a red light. The driver must remain stopped until the signal turns green and the turn can be made safely. This sign is common where visibility or pedestrian flow makes turns on red hazardous.

Question 24Regulatory Signs

A white sign with a red circle and slash over a symbol of a left-turn arrow is posted at an intersection where a green left arrow also exists. What is the effect of the sign?

  1. Left turns are permitted whenever the way is clear
  2. Left turns are permitted only from the right lane
  3. Left turns are prohibited at all times, including on a green arrow
  4. Left turns are prohibited except when a green arrow is displayed Correct answer.

Explanation

A prohibition sign bans the movement except where a specific signal expressly permits it, such as a protected green arrow. The sign bars turns on red or on a circular green but not when the arrow authorizes the movement. Drivers should follow the signal that grants the protected turn.

Question 25Regulatory Signs

A white rectangular sign reads 'KEEP RIGHT' at a divided highway entrance, and a second sign reads 'DO NOT ENTER' faces the same direction on the left side. How should a driver interpret the pairing?

  1. Both signs apply only to trucks
  2. Either side of the divider may be used
  3. The left side is a passing lane
  4. The right side is the correct travel path and the left side is for opposing traffic Correct answer.

Explanation

KEEP RIGHT directs traffic to the correct side of a median or divider, while DO NOT ENTER marks the roadway carrying opposing traffic. Together they show that the right side is the intended path and the left side must not be entered. Following the left sign would put the driver against traffic.

Question 26Regulatory Signs

A white rectangular sign with black lettering reads 'YIELD HERE TO PEDESTRIANS' at a marked crosswalk. What does this sign require of a driver approaching the crosswalk?

  1. Sound the horn to warn pedestrians before proceeding
  2. Slow only if a pedestrian is already in the roadway
  3. Give way to pedestrians in the crosswalk and be ready to stop Correct answer.
  4. Stop fully at all times before the crosswalk

Explanation

A yield-to-pedestrians sign makes the pedestrian crossing a priority: the driver must let people in the crosswalk cross and approach at a speed that allows a stop. It does not demand a full stop when the crossing is empty, and it never authorizes proceeding without checking.

Question 27Regulatory Signs

A white rectangular sign mounted below a STOP sign reads 'ALL WAY'. What does this tell a driver at the intersection?

  1. Only the right-hand lane must stop
  2. Traffic on the cross street does not stop
  3. Every approach at the intersection has a stop sign Correct answer.
  4. The stop applies only during school hours

Explanation

An 'ALL WAY' plaque under a stop sign means every leg of the intersection is controlled by a stop sign, so first-arriving vehicles go first and ties are resolved by yielding to the right. It does not mean the cross street is uncontrolled.

Question 28Regulatory Signs

A white sign with black lettering reads 'NO PARKING 8 AM TO 4 PM' on a weekday. A driver arrives at 6 PM on a Tuesday. What does the restriction allow?

  1. Parking is prohibited because the restriction covers the whole day
  2. Parking is permitted because the posted hours have ended Correct answer.
  3. Parking is permitted only for 30 minutes
  4. Parking is prohibited because the sign applies every day

Explanation

A time-limited no-parking sign applies only during the stated hours; outside 8 AM to 4 PM the restriction does not operate. At 6 PM on a Tuesday the driver is past the cutoff and may park unless another sign says otherwise.

Question 29Regulatory Signs

A white rectangular sign with black lettering reads 'BRIDGE FREEZES BEFORE ROADWAY'. What hazard does this sign warn about?

  1. The bridge deck may be icy while the approach is clear Correct answer.
  2. The bridge has a weight limit in cold months
  3. The bridge surface is always warmer than the road
  4. The bridge is closed during freezing weather

Explanation

Bridge surfaces lose heat faster than the adjoining roadway, so ice can form on the deck while the approach still looks dry and clear. The sign alerts drivers to reduce speed and avoid sudden braking on the span.

Question 30Regulatory Signs

A white sign reads 'RIGHT LANE MUST TURN RIGHT' and you are in that lane intending to continue straight through the intersection. What is the correct action?

  1. Turn right, then make a U-turn to return to your route
  2. Continue straight and let other drivers adjust
  3. Change to a through lane before reaching the intersection Correct answer.
  4. Stop in the lane and wait for a gap to merge straight

Explanation

A mandatory turn lane obliges every vehicle in it to follow the posted movement, so a driver who wants to go straight must move to a through lane before the solid line and intersection. Continuing straight from a turn-only lane is both a violation and a common cause of collisions.

Question 31Regulatory Signs

A white sign shows a black symbol of a person walking with a diagonal red slash through it. Where is this regulatory sign typically posted?

  1. Along a freeway shoulder where pedestrians are prohibited Correct answer.
  2. At a marked crosswalk where pedestrians have the right of way
  3. At a trail crossing shared with cyclists
  4. At a school crossing during arrival and dismissal

Explanation

A pedestrian symbol inside a red circle with a slash is a prohibition sign meaning pedestrians are not allowed, which is typical of freeways, tunnels, and other limited-access roads. It is a regulatory sign, not a warning about a crossing ahead.

Question 32Regulatory Signs

You approach a white sign reading 'STOP HERE ON RED' mounted beside a traffic signal at an intersection with a marked stop line. What does the sign require when the signal is red?

  1. Stop beyond the sign to keep the crosswalk clear
  2. Stop at the marked line before the sign and remain stopped Correct answer.
  3. Stop at the sign only if a vehicle is ahead of you
  4. Slow down and proceed if the intersection looks clear

Explanation

The sign fixes the point where a red-light stop must be made, which is the marked stop line just before the sign. A driver must halt there and stay stopped until the signal changes or a permitted movement applies.

Question 33Regulatory Signs

A white rectangular sign reads 'NO PARKING ANY TIME' on one side of the street, and across the street a sign reads 'NO PARKING 7 AM TO 9 AM'. How do the two restrictions differ?

  1. Neither applies on weekends
  2. The first is continuous, the second applies only during stated hours Correct answer.
  3. The second is continuous, the first applies only in the morning
  4. Both prohibit parking around the clock

Explanation

'ANY TIME' means the prohibition never lifts, while a sign listing hours bars parking only during that window. Reading the qualifier on each sign is what determines whether parking is allowed at a given moment.

Question 34Regulatory Signs

A white sign with black lettering reads 'DO NOT BLOCK INTERSECTION' beneath a signal. Traffic is backed up beyond the crosswalk on your side. What should you do?

  1. Enter and stop in the intersection until traffic moves
  2. Enter slowly and stop on the crosswalk markings
  3. Wait behind the crosswalk until there is room to clear the intersection Correct answer.
  4. Drive around the queue using the opposing lane

Explanation

The sign reinforces the rule that a driver may not enter an intersection unless there is space to clear it completely. When the far side is blocked, the driver waits behind the crosswalk or stop line until the queue moves.

Question 35Regulatory Signs

A white sign with a red circle and slash over a symbol of a right-turn arrow is posted at an intersection. What movement does it prohibit?

  1. Continuing straight through the intersection
  2. Turning left at that intersection
  3. Turning right at that intersection Correct answer.
  4. Making a U-turn at that intersection

Explanation

A red circle with a slash over a directional arrow prohibits that specific movement, so a right-turn arrow crossed out bans right turns at that location. Drivers wanting to go that way must find another route.

Question 36Regulatory Signs

A white sign reads 'TRUCKS USE LOW GEAR' on a long downhill grade. Why is this regulatory instruction posted?

  1. To keep trucks from using engine braking on the grade
  2. To prevent brake fade from sustained service-brake use Correct answer.
  3. To reduce engine noise in residential areas
  4. To limit wear on the truck's brakes

Explanation

On long descents, continuous service-brake use overheats the brakes and causes fade, so trucks are directed to descend in a low gear and let engine braking control speed. The sign is a safety regulation aimed at preserving braking capacity.

Question 37Regulatory Signs

A white sign shows a black symbol of a school bus inside a red circle with a slash. What does this sign mean for a driver on that road?

  1. The road is reserved for school buses only
  2. School buses are prohibited from using the road Correct answer.
  3. School buses may stop only at marked pads
  4. Drivers must yield to school buses at all times

Explanation

A vehicle symbol inside a red circle with a slash is a prohibition applying to that class of vehicle, so the sign bans school buses from the road. It is not a warning about bus stops and does not reserve the road for buses.

Question 38Regulatory Signs

A white sign reads 'SPEED LIMIT 45' and directly below it a second white sign reads 'MINIMUM 30'. What do the two signs establish together?

  1. A maximum of 45 that applies only to trucks
  2. A maximum of 30 and a minimum of 45
  3. A posted maximum of 45 and an enforceable minimum of 30 Correct answer.
  4. A recommended speed of 45 and an advisory minimum of 30

Explanation

A speed limit sign sets the enforceable maximum, while a minimum speed sign sets a floor below which driving impedes traffic. Together they create a lawful speed band between 30 and 45 mph.

Question 39Regulatory Signs

A white sign reads 'KEEP RIGHT OF MEDIAN' at the start of a divided highway, and a driver realizes they are in the leftmost lane heading toward the median opening. What is the safest response?

  1. Stop and reverse to the correct lane
  2. Signal and cross the median opening to the far side
  3. Move to the right of the median before reaching the opening Correct answer.
  4. Continue left of the median and merge back later

Explanation

The sign directs traffic to pass on the right side of the median, so a driver in the wrong lane must reposition before the opening rather than crossing it. Crossing the median puts the vehicle into opposing or wrong-way traffic.

Question 40Regulatory Signs

A white sign reads 'NO TURN ON RED' at an intersection, and the signal is red with no traffic approaching. What does the sign require of a driver who wants to turn right?

  1. Wait for the signal to turn green before turning Correct answer.
  2. Turn only if a police officer directs it
  3. Turn after a full stop if the way is clear
  4. Turn after slowing to a near stop

Explanation

A 'NO TURN ON RED' sign removes the usual permission to turn right after stopping, so the driver must remain stopped until the signal shows green. Clear traffic does not override the posted prohibition.

Question 41Warning Signs

A yellow diamond-shaped sign with a black symbol of a car skidding and wavy tire tracks warns the driver of what condition ahead?

  1. Loose gravel on the shoulder
  2. Slippery when wet Correct answer.
  3. Uneven pavement joints
  4. Steep downhill grade

Explanation

The skidding-car symbol with wavy tracks is the standard warning for a slippery surface, most often caused by rain, ice, or oil buildup. Drivers should slow down before reaching the area and avoid sudden braking or steering.

Question 42Warning Signs

On a two-lane road, a yellow diamond sign shows a black arrow curving to the right. What does this sign tell you?

  1. A right lane ends ahead
  2. A right turn is permitted at the next intersection
  3. The road curves to the right ahead Correct answer.
  4. Traffic must merge right

Explanation

A yellow warning sign with a single curved arrow indicates a horizontal curve in the roadway, not a turning opportunity or a lane change. The advisory speed plaque below it, if present, gives the safe speed for the curve.

Question 43Warning Signs

You see a yellow diamond sign with a black cross symbol (a plus sign). What hazard does it mark?

  1. A hospital zone begins
  2. A four-way intersection ahead Correct answer.
  3. A church or cemetery ahead
  4. A railroad crossing ahead

Explanation

The plain cross symbol on a yellow warning sign denotes a crossroads or four-way intersection ahead. Drivers should be ready for vehicles entering from side roads and for possible cross traffic.

Question 44Warning Signs

A yellow diamond sign displays a black pedestrian figure. What should the driver expect?

  1. A hiking trail entrance
  2. A school bus stop ahead
  3. A sidewalk ends ahead
  4. A pedestrian crossing area ahead Correct answer.

Explanation

The pedestrian symbol warns of a crossing or an area where people frequently walk in or near the roadway. Drivers should reduce speed and scan both sides of the road for people entering the travel lane.

Question 45Warning Signs

A yellow diamond sign shows a black bicycle symbol. What does it warn of?

  1. A bicycle repair shop nearby
  2. A bike race is in progress
  3. Bicycles are prohibited on this road
  4. A bicycle lane or crossing ahead Correct answer.

Explanation

The bicycle warning symbol alerts drivers to cyclists crossing or sharing the roadway ahead. Motorists should expect bicycles and give them adequate space.

Question 46Warning Signs

A round yellow sign with a black 'X' and the letters 'RR' is placed before a crossing. What does it mean?

  1. A railroad crossing is ahead Correct answer.
  2. A rest area is ahead
  3. A crossroad intersection is ahead
  4. A roundabout is ahead

Explanation

The round yellow sign with 'RR' and an 'X' is the advance warning for a railroad crossing. Drivers should slow down, look and listen, and be prepared to stop if a train is approaching.

Question 47Warning Signs

A yellow diamond sign shows a black arrow bending sharply back in the opposite direction. What does it indicate?

  1. A hairpin or reverse curve is ahead Correct answer.
  2. Traffic must turn back
  3. A U-turn is permitted here
  4. A dead end is ahead

Explanation

A sharp reverse-turn arrow warns of a hairpin curve or a very sharp turn where speed must be greatly reduced. It is not a permission sign and does not mean the road ends.

Question 48Warning Signs

A yellow diamond sign depicts a black car with squiggly lines behind it on a wet-looking surface. Which action is most appropriate when you encounter this warning?

  1. Turn on high-beam headlights
  2. Reduce speed and avoid abrupt braking or steering Correct answer.
  3. Accelerate to pass the area quickly
  4. Shift to neutral and coast

Explanation

The slippery-surface warning calls for lower speed and smooth control inputs so the tires retain traction. Sudden braking or steering can cause a skid on a low-friction surface.

Question 49Warning Signs

A yellow diamond sign shows a black arrow curving right, and below it a yellow plaque reads '35 MPH'. What does the plaque mean?

  1. The legal speed limit is 35 mph
  2. The minimum speed is 35 mph
  3. The advisory speed for the curve is 35 mph Correct answer.
  4. Trucks must travel at 35 mph

Explanation

A yellow speed plaque under a warning sign gives an advisory speed, the recommended maximum for the hazard under good conditions. It is not a posted legal limit, though exceeding it in the curve is unsafe.

Question 50Warning Signs

A yellow diamond sign shows two arrows, one straight and one angling in from the right, joining together. What does this warn of?

  1. A divided highway begins
  2. A right lane will merge into your lane Correct answer.
  3. Traffic must exit to the right
  4. A new lane will be added on the right

Explanation

The merge warning shows an entering lane joining the through lane, telling drivers that traffic from the right will merge. Drivers in the through lane should be prepared to adjust speed or change lanes if possible.