School bus yellow lights — Delaware Permit Test
School bus yellow lights on the Delaware permit test — 2 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Delaware school buses switch on their flashing yellow lights about 10 seconds before the flashing red lights, to warn that a stop is coming.
Without a warning, a driver close behind would meet a bus stopping short with children about to step out.
They will be activated approximately 10 seconds prior to the overhead flashing red lights to warn drivers of approaching vehicles that a stop to load or unload school children is about to be made.
In Delaware, approach a school bus flashing its yellow lights with caution and expect it to stop, since children may be waiting or running to board.
A child running for the bus may cross the road right in front of you.
Approach a bus flashing these yellow lights with caution and anticipate a stop.
On the test
About how long before the red lights do a school bus's yellow lights come on?
10 seconds. Without a warning, a driver close behind would meet a bus stopping short with children about to step out. Delaware Driver Manual, p.89: “They will be activated approximately 10 seconds prior to the overhead flashing red lights to warn drivers of approaching vehicles that a stop to load or unload school children is about to be made.”
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
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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)