Lane use control signals — Nevada Permit Test
Lane use control signals on the Nevada permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.
The rules
A down green arrow with OPEN over a freeway lane means you may drive the posted speed limit in that lane.
A driver who slows for no reason in an open lane surprises the fast cars behind.
A down green arrow with OPEN means drivers are allowed to drive the posted speed limit in the lane below the green arrow.
A yellow X with CAUTION means you can use the lane under it, but there could be slow traffic or debris.
Driving full speed under a caution X can put you into stopped cars or junk lying in the lane.
A yellow X with CAUTION means drivers can use the lane under the yellow X.
A yellow X with MERGE means the lane is ending and you should prepare to merge safely into another open lane.
A driver who waits until the lane runs out must force their way over at the last second.
A yellow X with MERGE means the lane is ending and the driver should prepare to safely merge into another open lane.
A red X with CLOSED means you cannot drive in the lane under it and must safely merge into another open lane.
A closed lane may hide a crash or workers ahead, and a car that stays in it runs into them.
A red X with CLOSED means drivers cannot drive in the lane under the red X.
On the test
Over a freeway lane you see a down green arrow with OPEN. What does it mean?
You may drive the posted limit in it. A driver who slows for no reason in an open lane surprises the fast cars behind. Nevada Driver Handbook, p.37: “A down green arrow with OPEN means drivers are allowed to drive the posted speed limit in the lane below the green arrow.”
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 Nevada Driver Handbook, published by the Nevada Department of Motor Vehicles, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/NV.pdf (Nevada Driver Handbook, DMV 700, March 2024, Nevada Department of Motor Vehicles, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/NV.pages.txt (plain pdftotext, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/NV-exam.html (Nevada DMV, Written Knowledge Test page, https://dmv.nv.gov/wtestteens.htm, read 2026-10-04; states both exam figures; sha256 pinned under examSource)
- https://dmv.nv.gov/dlhandbook.htm (read 2026-10-04; links the handbook)