Alcohol effects — Kansas Permit Test

Alcohol effects on the Kansas permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Alcohol and other impairing drugs are involved in approximately 40% of all fatal crashes.

Two in five deaths on the road involve it. That is the share a single decision not to drive removes.

Alcohol and other impairing drugs are involved in approximately 40% of all fatal crashes.

Kansas Driving Handbook, p.22

Alcohol and other impairing drugs affect the areas of a driver's brain that control judgment, which is one reason drinking and taking certain drugs is so dangerous.

The part that would tell you to stop is the part that goes first. That is why drinkers feel fine and drive badly.

Alcohol and other impairing drugs affect those areas of your brain that control judgment.

Kansas Driving Handbook, p.23

A driver's vision is impacted at .02 BAC.

Vision goes long before the legal limit. One drink is enough to change what you can pick out of the dark.

Vision is impacted at .02 BAC for all drivers.

Kansas Driving Handbook, p.23

Alcohol and other impairing drugs reduce a driver's ability to distinguish colors, which matters because much roadway information comes from the colors of signs, signals and markings.

The road speaks in color. Red, yellow and green stop meaning what they should.

A lot of the information you receive on the roadway is from different colors such as traffic signs, signals and roadway markings.

Kansas Driving Handbook, p.23

Alcohol and other impairing drugs reduce the ability to judge distance, speed and the movement of other vehicles, so a driver could drift across the centerline, wander from lane to lane, or run off the roadway.

Judging a gap is most of driving. When that goes, the car wanders without the driver noticing.

Alcohol and other impairing drugs reduce the ability to judge distance, speed and the movement of other vehicles. With increasing impairment, you could drift across the centerline, wander from lane to lane, or even run off the roadway.

Kansas Driving Handbook, p.23

On the test

What share of fatal crashes involve alcohol or other impairing drugs?

About 40%. Two in five deaths on the road involve it. That is the share a single decision not to drive removes. Kansas Driving Handbook, p.22: “Alcohol and other impairing drugs are involved in approximately 40% of all fatal crashes.”

How this works

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Where these come from

Every rule here is checked against Kansas Driving Handbook, published by the Kansas Department of Revenue, and against the state code itself. Last checked 2026-09-16.