Oklahoma: Road signs — Part 2 Practice Test
Regulatory, warning, school, railroad, construction, guide and service signs in the Oklahoma Driver Manual. — Part 2
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Questions are original and based on the official manual "Oklahoma Driver Manual" (2025 (updated November 24, 2025)), Service Oklahoma.
All 18 questions in this practice test
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A white sign reads DO NOT PASS. Why does the manual say you must not pass or cross the yellow lines there?
- Road work is under way on the shoulder ahead
- The speed limit drops sharply just ahead
- You can't see far enough ahead to pass safely
- A school zone begins a short way ahead
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Correct answer: You can't see far enough ahead to pass safely
No-passing signs mark places where your view ahead is too short to pass safely, so you stay behind the yellow lines.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 20 · Open this page in the manual (Manual page 20)
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A white sign shows a black arrow turning to the right inside a red circle with a slash. What does it mean?
- Right turn only
- No right turn
- Right lane ends
- Keep right
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Correct answer: No right turn
A right-turn arrow crossed out by a red circle and slash means no right turn.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 20 · Open this page in the manual (Manual page 20)
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A white sign shows a U-shaped arrow inside a red circle with a slash. What does it forbid?
- Turning right at the intersection on red
- Changing lanes inside the intersection
- Driving straight through the intersection
- Turning around in the street or intersection
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Correct answer: Turning around in the street or intersection
A No U-turn sign means you may not turn around in the street or the intersection.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 20 · Open this page in the manual (Manual page 20)
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A white sign shows a black truck inside a red circle with a slash. What does it mean?
- No trucks
- Truck route
- Trucks keep right
- Truck crossing ahead
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Correct answer: No trucks
A truck symbol crossed out by a red circle and slash means trucks are not allowed.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 20 · Open this page in the manual (Manual page 20)
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A white sign shows a bicycle inside a red circle with a slash. What does it mean?
- Bike lane ahead
- Bicycle crossing
- No bicycles
- Bicycles must yield
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Correct answer: No bicycles
A bicycle crossed out by a red circle and slash means bicycles are not allowed.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 20 · Open this page in the manual (Manual page 20)
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When you see a warning sign, what should you be prepared to do?
- Come to a full stop and then go when it's clear
- Leave the highway at the very next exit ramp
- Speed up so you pass the hazard more quickly
- Use extra caution or make changes as you drive
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Correct answer: Use extra caution or make changes as you drive
Warning signs point out conditions just ahead, so be ready to take extra care or adjust your driving.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows a black box with red, yellow and green circles. What does it warn of?
- A traffic signal ahead; be prepared to stop
- A railroad crossing ahead; look and listen
- A school crossing ahead; watch for children
- A work zone ahead where one lane is closed
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Correct answer: A traffic signal ahead; be prepared to stop
A yellow diamond with a traffic light symbol warns of a traffic control signal ahead, so be ready to stop.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows two arrows going in opposite directions, kept apart by a rounded island at the bottom of the sign and coming together at the top. What does it warn of?
- A divided highway begins; keep right
- The road narrows to one lane ahead
- The divided highway ends; two-way traffic
- Two roadways join and a lane is added
Show answer
Correct answer: The divided highway ends; two-way traffic
The divided highway ends ahead; be careful at the point where two-way traffic begins again.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows 12'-6" between an arrow pointing up and an arrow pointing down. What does it mean?
- The road ahead narrows to a width of 12 feet 6 inches
- Taller vehicles or loads can't go through the underpass
- Keep 12 feet 6 inches back from the vehicle ahead
- The bridge ahead has a weight limit for trucks
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Correct answer: Taller vehicles or loads can't go through the underpass
The number is the clearance of the underpass ahead; vehicles or loads higher than that cannot go through.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows an arrow bending gently to the right. What does the manual tell you to do?
- Pass slow vehicles before the curve begins
- Move toward the center line to see ahead
- Keep your speed and use the left lane
- Slow down, keep right, and don't pass
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Correct answer: Slow down, keep right, and don't pass
The sign warns of a gentle curve to the right: slow down, stay to the right and do not pass.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows two arrows going in opposite directions that split apart around a rounded island at the top of the sign. What should you do?
- Keep to the right of the median
- Keep to the left of the median
- Merge into a single lane
- Stop before reaching the island
Show answer
Correct answer: Keep to the right of the median
The divided-highway-ahead sign means a center strip (median) is coming up; keep to the right.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows two vertical arrows side by side, one pointing up and one pointing down. What should you do?
- Use either lane; all traffic moves in your direction
- Move to the left lane to let others merge from the right
- Keep in the right lane; expect oncoming traffic on the left
- Stop and yield to traffic crossing from both sides
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Correct answer: Keep in the right lane; expect oncoming traffic on the left
The sign warns of two-way traffic ahead: drive in the right-hand lane and expect oncoming vehicles in the left-hand lane.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows a straight arrow on the left and a second arrow curving in from the right, with a dashed line between them. What does it mean?
- Your lane ends; merge left into the next lane
- A new lane is added; no need to merge, but watch it
- Two-way traffic begins; keep to the right
- A narrow bridge is ahead; approach slowly here
Show answer
Correct answer: A new lane is added; no need to merge, but watch it
Two roadways come together and a new lane is added; you do not have to merge, but watch for traffic in the new lane.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows one large arrow with a shorter line joining it from the right. What should you be ready to do?
- Speed up so the merging cars fall in behind
- Stop and wait for merging traffic to clear
- Hold your speed and stay right beside them
- Change speed or lane so others can merge safely
Show answer
Correct answer: Change speed or lane so others can merge safely
The merge sign warns that other traffic may move into your lane, so be ready to adjust your speed and lane to let them in safely.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows two lane lines, with the right-hand line bending in toward the left one. What does it mean?
- The right lane ends; prepare to merge
- A new lane opens on the right side
- The road curves sharply to the right
- An exit ramp leaves on the right
Show answer
Correct answer: The right lane ends; prepare to merge
A sign with the right lane line bending inward warns that the right lane ends ahead, so prepare to merge.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows a truck on a downward slope, with a HILL plaque below it. What does the manual suggest?
- Shift into neutral and coast down the grade
- Only trucks need to slow down on this hill
- Approach with caution; a lower gear may help
- Speed up to carry momentum over the top
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Correct answer: Approach with caution; a lower gear may help
A steep hill is ahead: every driver should approach with caution, and a lower gear can help slow the vehicle.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows a red octagon with an arrow above it. What does it mean?
- Stop right at this sign, then continue
- A stop sign is ahead; be ready to stop
- Road closed ahead; turn back now
- A traffic signal ahead is not working
Show answer
Correct answer: A stop sign is ahead; be ready to stop
A Stop Ahead warning sign tells you a stop sign is coming up, so be prepared to stop.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)
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A yellow diamond sign shows both road edges pinching inward around a dashed center line. What does it warn of?
- A divided highway begins just ahead
- A low underpass with limited height
- Extra lanes added on both sides
- A narrow two-lane bridge or culvert
Show answer
Correct answer: A narrow two-lane bridge or culvert
The sign warns of a two-lane narrow bridge or culvert ahead; approach it with caution.
Source: Oklahoma Driver Manual (2025 (updated November 24, 2025)), page 21 · Open this page in the manual (Manual page 21)