Using your lights — Delaware Permit Test
Using your lights on the Delaware permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Use your high beams whenever there are no oncoming vehicles; they let you see twice as far as low beams.
On a dark road on low beams, a deer shows up only when it is too close to stop for.
High beams let you see twice as far as low beams.
Use high beams on unfamiliar roads, in construction areas, or where there may be people along the side of the road.
On a strange road at night, a sharp curve or a walker on the shoulder comes up fast on low beams.
It is important to use high beams on unfamiliar roads, in construction areas, or where there may be people along the side of the road.
Use low beams in fog or when it is snowing or raining hard, because high beams reflect back and cause glare.
High beams in fog throw a white wall of light back into your eyes.
Use the low beams in fog or when it is snowing or raining hard.
If an oncoming vehicle has its high beams on, flash your headlights quickly a couple of times.
The other driver may simply have forgotten the high beams are on until reminded.
If a vehicle comes toward you with high beams on, flash your headlights quickly a couple of times.
If an oncoming driver fails to dim the lights, look toward the right side of the road; do not keep your own brights on to get back at them.
Staring into the glare leaves you blind for a moment, and brights back blind both drivers.
If the driver fails to dim the lights, look toward the right side of the road.
On the test
How much farther do high beams let you see than low beams?
About twice as far. On a dark road on low beams, a deer shows up only when it is too close to stop for. Delaware Driver Manual, p.119: “High beams let you see twice as far as low beams.”
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 Delaware Driver Manual, published by the Delaware Division of Motor Vehicles, and against the state code itself. Last checked 2026-10-05.
- src/assets/drivers-manuals/DE.pdf (Delaware Driver Manual, July 2026, Delaware Division of Motor Vehicles, retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/DE.pages.txt (scripts/de-text.sh: plain pdftotext cropped to keep the section tab out, physical 47 under -layout; the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/DE-exam.html (Delaware Division of Motor Vehicles, Driver's License Exam, https://dmv.de.gov/DriverServices/drivers_license/index.shtml?dc=dr_lic_written, read 2026-10-05; states both exam figures; sha256 pinned under examSource)
- https://dmv.de.gov/menu/forms_manuals.shtml (read 2026-10-05; links the manual)
- https://dmv.de.gov/DriverServices/faqs/index.shtml?dc=dr_faq_general (read 2026-10-05; its 30 and 24 are the exam page's figures before 2024-12, per the Internet Archive)