Signal when you slow down — Delaware Permit Test

Signal when you slow down on the Delaware permit test — 3 rules, each with the reason behind it and a question on it while it is fresh.

The rules

If you will stop or slow where another driver does not expect it, tap your brake pedal three or four times quickly to warn those behind you.

A driver behind you on the open road does not expect you to slow for a hidden driveway.

If you are going to stop or slow down at a place where another driver does not expect it, tap your brake pedal three or four times quickly to let those behind you know you are about to slow down.

Delaware Driver Manual, p.122

Signal that you are slowing down when you turn off a roadway that has no separate turn or exit lanes.

With no turn lane, the car behind is still in your lane at full speed as you slow to turn.

To turn off a roadway which does not have separate turn or exit lanes.

Delaware Driver Manual, p.122

Signal for a much longer distance when you are traveling at high speed, especially when changing lanes on express highways such as the interstate.

At 65 mph a short signal is over before the driver behind has even noticed it.

You should signal for a much greater distance (longer time interval) when traveling at a high speed.

Delaware Driver Manual, p.122

On the test

You must slow down where drivers behind you will not expect it. How should you warn them?

Tap the brake 3 or 4 times quickly. A driver behind you on the open road does not expect you to slow for a hidden driveway. Delaware Driver Manual, p.122: “If you are going to stop or slow down at a place where another driver does not expect it, tap your brake pedal three or four times quickly to let those behind you know you are about to slow down.”

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.