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.

Delaware Driver Manual, p.119

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.

Delaware Driver Manual, p.119

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.

Delaware Driver Manual, p.119

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.

Delaware Driver Manual, p.119

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.

Delaware Driver Manual, p.119

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

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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.