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Study list: U.S. Road Signs Practice Test (with Pictures)

Every question of this practice test with its correct answer, a short explanation and the part of the official source it comes from.

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Practice these questions in the test

Official source: FHWA: Manual on Uniform Traffic Control Devices (MUTCD), 11th Edition with Revision 1 (December 2025). Last verified: October 13, 2026.

  1. Red eight-sided sign with a white border and the white word STOP

    What does this sign require when you reach the intersection?

    Answer: A full stop

    The STOP sign is used where a full stop is required on every approach it controls. Only the STOP sign has an octagon shape.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.04, STOP sign (R1-1)

  2. Downward-pointing triangle with a red border, white center and the red word YIELD

    What should you do when you see this sign?

    Answer: Slow down and give the right-of-way to other traffic, stopping if needed

    At a YIELD sign you slow to a reasonable speed and stop only when needed so you do not interfere with conflicting traffic.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.05, YIELD sign (R1-2)

  3. Red circle with a white horizontal bar and the white words DO NOT ENTER

    Where would you typically see this sign?

    Answer: Where you could wrongly enter a one-way road, divided highway or ramp

    DO NOT ENTER signs face drivers who might enter a road or ramp against the direction of traffic, for example where a two-way road becomes one-way.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.46, DO NOT ENTER sign (R5-1)

  4. Red horizontal rectangle with the white words WRONG WAY

    You pass this sign after turning onto a road. What does it tell you?

    Answer: You are driving against the direction of traffic on a one-way road

    The WRONG WAY sign supplements DO NOT ENTER where a crossroad meets a one-way road. Turn around safely as soon as you can.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.47, WRONG WAY sign (R5-1a)

  5. Black horizontal rectangle with a white arrow pointing right containing the black words ONE WAY

    What does this arrow sign tell you about the street it points along?

    Answer: Traffic may travel only in the direction of the arrow

    ONE WAY signs mark streets where vehicles are allowed to travel in a single direction only.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.49, ONE WAY sign (R6-1)

  6. White square sign with a black arrow turning left, crossed by a red circle with a slash

    What does this sign prohibit at the intersection?

    Answer: Turning left

    A red circle with a slash over a movement means that movement is not allowed. Movement prohibition signs are used where a turn is banned at an approach.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.26, No Left Turn sign (R3-2)

  7. White square sign with a black arrow turning right, crossed by a red circle with a slash

    Which movement is banned by this sign?

    Answer: Turning right

    The slashed red circle over a right-turn arrow prohibits right turns at that approach.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.26, No Right Turn sign (R3-1)

  8. White square sign with a black U-shaped arrow, crossed by a red circle with a slash

    What may you not do where this sign is posted?

    Answer: Make a U-turn

    The U-shaped arrow inside a slashed red circle means U-turns are prohibited there.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.26, No U-Turn sign (R3-4)

  9. White rectangular sign with the black words NO TURN ON RED and a red circle

    At a red signal with this sign posted, what is not allowed?

    Answer: Turning on the red light, even after stopping

    This sign is used where a turn on a red light would otherwise be permitted but has been prohibited at that intersection. Wait for the green.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.60, NO TURN ON RED sign (R10-11)

  10. White vertical rectangle with the black words SPEED LIMIT above a large number 50

    What does the number on this sign show?

    Answer: The maximum speed set by law or ordinance for that road

    A Speed Limit sign displays the legally established limit. You may still need to drive slower when conditions require it.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.21, Speed Limit sign (R2-1)

  11. White vertical rectangle with a black island shape and a black arrow that curves up past its right side

    You see this sign at the start of a median island. What should you do?

    Answer: Pass to the right of the island or obstruction

    Keep Right signs are posted where drivers must go around a median or obstacle on its right side only.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.39, Keep Right sign (R4-7)

  12. White vertical rectangle with the black words DO NOT PASS

    What does this rectangular sign tell you?

    Answer: Passing other vehicles is not allowed in this zone

    The DO NOT PASS sign can back up no-passing pavement markings where sight distance is limited or passing would be unsafe.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.36, DO NOT PASS sign (R4-1)

  13. White vertical rectangle with the black words SLOWER TRAFFIC KEEP RIGHT

    On a multi-lane road, who does this sign apply to?

    Answer: Drivers going slower than the normal flow, who should use the right lane

    This sign reduces unnecessary lane changes caused by slow vehicles holding up the normal flow of traffic.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.38, SLOWER TRAFFIC KEEP RIGHT sign (R4-3)

  14. White square sign with a black letter P crossed by a red circle with a slash

    What does this symbol sign mean?

    Answer: No parking

    The red circle with a slash over the letter P is the No Parking symbol sign.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2B.52, No Parking (symbol) sign (R8-3)

  15. Yellow diamond sign with a black car and two wavy skid marks behind it

    Signs with this shape and color belong to which group?

    Answer: Warning signs

    Most warning signs are yellow diamonds with black symbols or words and a black border.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.02, Design of Warning Signs

  16. Yellow diamond with a black car followed by two wavy tire tracks

    What condition does this sign warn about?

    Answer: The road can be unexpectedly slippery, for example when wet

    The Slippery When Wet sign warns of unexpected slippery conditions; plaques such as ICE or WHEN WET can explain why.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.30, Slippery When Wet sign (W8-5)

  17. Yellow diamond with a black arrow that bends gently to the right

    What is ahead when you see this sign?

    Answer: A curve to the right

    The Curve sign is placed before a curve; the arrow shows its direction. Sharper turns use the Turn sign instead.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.07, Curve sign (W1-2)

  18. Yellow diamond with a black arrow that bends sharply at a right angle to the right

    How does this sign differ from a gentle curve sign?

    Answer: It warns of a sharper turn, typically one with an advisory speed of 30 mph or lower

    The Turn sign replaces the Curve sign before sharp curves that have an advisory speed of 30 mph or lower.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.07, Turn sign (W1-1)

  19. Yellow diamond with a black arrow that curves one way and then the other

    What does this sign tell you about the road ahead?

    Answer: Two curves in opposite directions close together

    A Reverse Curve sign is used where two curves in opposite directions are separated by less than 600 feet of straight road.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.07, Reverse Curve sign (W1-4)

  20. Yellow diamond with a black wavy arrow bending several times

    What road condition does this sign show?

    Answer: Three or more curves in a row

    The Winding Road sign can replace several curve signs where three or more curves follow each other closely.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.07, Winding Road sign (W1-5)

  21. Yellow diamond with a black truck on a steep downward slope

    What should you prepare for after this sign?

    Answer: A downgrade that needs special care

    The Hill sign is used before downgrades whose length, steepness or curves call for extra caution. Control your speed.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.14, Hill sign (W7-1)

  22. Yellow diamond with a red octagon and a black arrow pointing up

    Why is this sign placed before an intersection?

    Answer: A STOP sign ahead cannot be seen early enough, so you are warned in advance

    Advance traffic control signs are installed when the STOP sign, YIELD sign or signal ahead is not visible soon enough to react.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.35, Stop Ahead sign (W3-1)

  23. Yellow diamond with a red and white downward-pointing triangle and a black arrow pointing up

    What does this warning sign tell you?

    Answer: There is a YIELD sign ahead

    The Yield Ahead sign gives advance notice of a YIELD sign that is hard to see in time.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.35, Yield Ahead sign (W3-2)

  24. Yellow diamond with a black traffic signal showing red, yellow and green lights

    What does this sign warn you about?

    Answer: A traffic signal ahead

    Signal Ahead signs warn of a traffic signal that is not visible from far enough away.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.35, Signal Ahead sign (W3-3)

  25. Yellow diamond with a black arrow pointing up and a second black line joining it from the side

    What does this sign warn about?

    Answer: Traffic from another roadway may merge into your lane

    The Merge sign warns that lanes from two roadways come together as one lane, so watch for entering traffic.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.45, Merge sign (W4-1)

  26. Yellow diamond with two black lane edges and a dashed lane line; the right edge bends inward

    What does this sign mean?

    Answer: The number of lanes in your direction is reduced ahead

    Lane Ends signs warn that a lane is ending. Drivers in that lane must merge safely into the remaining lane.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.47, Lane Ends sign (W4-2)

  27. Yellow diamond with two black arrows going in opposite directions, separated by an island shape at the top

    This sign appears on a two-way road. What changes ahead?

    Answer: A divided highway begins, with a median separating the two directions

    The Divided Highway sign is used where opposing traffic becomes separated by a median or barrier.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.20, Divided Highway sign (W6-1)

  28. Yellow diamond with two black arrows going in opposite directions, separated by an island shape at the bottom

    What should you expect after this sign?

    Answer: The divided highway ends and two-way traffic is ahead

    This sign warns that the physical separation ends, so oncoming traffic will no longer be divided from you.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.21, Divided Highway Ends sign (W6-2)

  29. Yellow diamond with two black vertical arrows, one pointing up and one pointing down

    What does this sign with two opposite arrows warn about?

    Answer: A change to a two-lane road with traffic in both directions

    The Two-Way Traffic sign warns of a transition from a divided or one-way road to a two-lane, two-way road.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.51, Two-Way Traffic sign (W6-3)

  30. Yellow diamond with the black words NARROW BRIDGE

    What should you expect where this yellow word sign is posted?

    Answer: A bridge whose roadway is narrower than the approach

    NARROW BRIDGE signs are used before bridges with little horizontal clearance, so slow down and stay in your lane.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.18, NARROW BRIDGE sign (W5-2)

  31. Yellow diamond with a black arrow pointing down-left and another pointing down-right

    What does this sign tell you at an island or obstruction?

    Answer: Traffic may pass on either side of it

    The Double Arrow sign shows that you may drive around an island or obstacle on its left or its right.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.23, Double Arrow sign (W12-1)

  32. Yellow diamond with a black plus sign

    What does this plus-shaped symbol on a warning sign mean?

    Answer: An intersection ahead where traffic may turn or enter

    Intersection warning signs warn that an intersection is ahead and that vehicles may turn or enter the road.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.41, Cross Road sign (W2-1)

  33. Yellow diamond with a black vertical line and a shorter black line joining it from the right

    What does this symbol tell you is ahead on your right?

    Answer: A side road joining the road you are on

    The Side Road sign warns that another road joins from the side shown, so watch for vehicles entering or turning.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.41, Side Road sign (W2-2)

  34. Yellow diamond with a black walking person

    What should you watch for after this sign?

    Answer: People who may cross or walk on the road

    Non-vehicular warning signs alert drivers to places where pedestrians or animals might unexpectedly enter or share the road.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.55, Pedestrian warning sign (W11-2)

  35. Yellow diamond with a black leaping deer

    What does this warning sign mean?

    Answer: Deer may enter the road in this area

    The Deer sign is one of the non-vehicular warning signs for animals that might unexpectedly enter the roadway.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.55, Deer sign (W11-3)

  36. Yellow diamond with a black bicycle

    What does this sign warn you to expect?

    Answer: Bicycles that may enter or use the road

    Vehicular traffic warning signs alert drivers to places where vehicles such as bicycles might unexpectedly enter the road.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.54, Bicycle warning sign (W11-1)

  37. Fluorescent yellow-green five-sided sign pointing up, with two black walking children

    What does this five-sided sign warn you about?

    Answer: A school area, school zone or school crossing

    The upward-pointing pentagon is reserved for the School sign, which marks school areas, school zones and school crossings.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 7B.02, School sign (S1-1)

  38. Yellow pennant-shaped sign pointing right, with the black words NO PASSING ZONE

    On which side of the road is this pennant-shaped sign placed, and what does it mean?

    Answer: On the left side, marking the start of a no-passing zone

    The pennant shape is used only for NO PASSING ZONE, installed on the left-hand side where the no-passing zone begins.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2C.53, NO PASSING ZONE sign (W14-3)

  39. Round yellow sign with a black X and the letters R R

    What does this round yellow sign warn you about?

    Answer: A railroad crossing ahead

    The circle is the shape reserved for the Grade Crossing Advance Warning sign, placed before railroad crossings.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 8B.06, Grade Crossing Advance Warning sign (W10-1)

  40. White X-shaped sign made of two crossed boards with the black words RAILROAD CROSSING

    In most states, what does this X-shaped sign require?

    Answer: Yield the right-of-way to trains at the crossing

    The Crossbuck marks a railroad crossing. In most states it requires you to yield to rail traffic; a plaque below it shows the number of tracks if there is more than one.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 8B.03, Grade Crossing (Crossbuck) sign (R15-1)

  41. Blue square sign with a white letter H

    What kind of information does this blue sign give?

    Answer: A road user service: a hospital is nearby

    Service signs, such as the Hospital sign, are blue with white symbols or words and a white border.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2I.02, Hospital sign (D9-2)

  42. Orange diamond with the black words ROAD WORK 1000 FT

    What does this orange diamond sign warn about?

    Answer: A work zone ahead, with possible obstructions or restrictions

    Temporary traffic control warning signs are orange diamonds with black legends. ROAD WORK signs warn of work and restrictions ahead.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 6H.03, ROAD WORK sign (W20-1)

  43. Which sign is the only one with an octagon (eight-sided) shape?

    Answer: STOP

    The octagon is reserved for the STOP sign, so you can recognize it even from the back or when it is covered with snow.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2A.05 (Shapes), Table 2A-1

  44. Which sign has a downward-pointing triangle shape?

    Answer: YIELD

    The downward-pointing equilateral triangle is used only for the YIELD sign.

    Source: MUTCD 11th Edition (Rev. 1, Dec. 2025), Section 2A.05 (Shapes), Table 2A-1