Warning signs text ok — Oklahoma Permit Test
Warning signs text ok on the Oklahoma permit test — 8 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Where a warning sign shows two roadways coming together with a new lane added, you do not have to merge, but watch for traffic in the new lane.
The road joining you keeps its own lane, but cars in it may still move over beside you.
You do not have to merge (form one line), but watch for traffic in the new lane.
A low-clearance warning sign means vehicles or loads higher than the clearance shown can't go through the underpass.
A truck or trailer taller than the opening will strike the bridge and can bring down its load.
Vehicles or loads higher than the clearance shown can’t go through the underpass.
A narrow bridge warning sign means a two-lane narrow bridge or culvert is ahead; approach with caution.
A narrow bridge leaves little room between you and an oncoming car, and no shoulder to escape onto.
Two-lane narrow bridge or culvert ahead. Approach with caution.
At a pedestrian crossing warning sign, slow down and prepare to stop, watch both sides of the street, and yield.
A person on foot has no protection, so even a slow car can badly hurt someone crossing.
Pedestrian Crossing. Slow down and prepare to stop. Watch both sides of the street. You must yield.
A T intersection warning sign means you must turn right or left ahead; be prepared to yield.
The road you are on ends at a cross street, so a driver who keeps going straight runs off the road.
“T” intersection ahead. You must turn right or left. Be prepared to yield.
A night-time reflector shows where the road lies (the road alignment).
On a dark road the edges vanish, and reflectors trace the curve before your headlights reach it.
Night-time reflector that shows where the road lies (road alignment).
The diagonal stripes on a warning sign or barricade show the direction in which traffic is to pass.
Stripes read at a glance, so you know which side of an obstacle to steer for before you reach it.
The diagonal stripes on a warning sign or barricade show the direction in which the traffic is to pass.
Stripes sloping downward to the right mean bear to the right; stripes sloping downward to the left mean bear to the left.
Following the slope of the stripes steers you around the obstacle on its open side.
Stripes sloping downward to the right mean bear to the right.
On the test
A warning sign shows two roadways coming together with a new lane added. Must you merge?
No, but watch for traffic in the new lane. The road joining you keeps its own lane, but cars in it may still move over beside you. Oklahoma Driver Manual, p.21: “You do not have to merge (form one line), but watch for traffic in the new lane.”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
What it costs
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
- Free to start: a 10-question test and the first section of cards. No sign-up and no account.
- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
Where these come from
Every rule here is checked against Oklahoma Driver Manual, published by the Oklahoma Office of Management and Enterprise Services, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/OK.pdf (Oklahoma Driver Manual, Copyright 2025, Updated 11/24/25, Service Oklahoma, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/OK.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/OK-exam.html (Service Oklahoma, Oklahoma Written Knowledge Test, https://oklahoma.gov/service/popular-services/written-test.html, read 2026-10-04; states both exam figures; sha256 pinned under examSource)
- https://oklahoma.gov/service/all-pages/driver-education.html (read 2026-10-04; links the manual)
- OAC 260:135-5-41 (Service Oklahoma's knowledge-test rule, read 2026-10-04 as reproduced at https://www.law.cornell.edu/regulations/oklahoma/OAC-260-135-5-41; a minimum of 20 questions and 75 percent to pass, corroborating the agency page)