Parking on a hill — Arizona Permit Test
Parking on a hill on the Arizona permit test — 3 rules, each with the reason behind it and a question on it while it is fresh.
The rules
When you park facing downhill, turn your wheels toward the curb and set your parking brake.
If the brake slips, a car with its wheels turned in rolls into the curb and stops. Wheels left straight let it roll down the street.
When you park on a downhill grade, turn your wheels toward the curb and set your parking brake.
When you park facing uphill with a curb, turn your wheels to the left and let the car roll back until the right front wheel rests against the curb.
With the wheels turned left, a car that starts to roll back catches its front wheel on the curb instead of sliding into traffic.
If you park on an uphill grade, turn your wheels to the left, let your car roll back until the right front wheel rests against the curb and stops.
When you park on a hill with no curb, turn the wheels to the right so the car will roll away from the center of the road if the brakes fail.
With no curb to catch it, a car that rolls should head off the road, not out into the lanes where other cars are driving.
If there is no curb, turn the wheels to the right so that the car will roll away from the center of the road in the event the brakes fail.
On the test
Which way should you turn your wheels when you park downhill next to a curb?
Toward the curb. If the brake slips, a car with its wheels turned in rolls into the curb and stops. Wheels left straight let it roll down the street. Arizona Driver License Manual and Customer Service Guide, p.30: “When you park on a downhill grade, turn your wheels toward the curb and set your parking brake.”
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 Arizona Driver License Manual and Customer Service Guide, published by the Arizona Department of Transportation, and against the state code itself. Last checked 2026-09-28.
- src/assets/drivers-manuals/AZ.pdf (Arizona Driver License Manual and Customer Service Guide, Revised September 2026, ADOT MVD, retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/AZ.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/AZ-exam.html (azdot.gov/mvd/services/driver-license-ID/permit-test as served on 2026-09-28; the only source for both exam figures)
- src/assets/drivers-manuals/SOURCES.json, AZ entry -- the folio marker and its basis, the extraction-flag score and its welded compounds, and the record of where the exam shape comes from
- docs/plans/how-to-build-laws.md (the runbook this corpus follows)