aprobify.

Topic 4 · Defensive Driving and Safe Driving Practices

In a heavy rainstorm you cannot see more than 100 feet ahead. Your speed should not exceed:

Why

Below 100 feet of visibility it is not safe to drive faster than 30 mph, and you may have to stop from time to time. (Section 8, Slippery Roads.)

Practise this in the real format

Reading one answer is not the same as sitting the test. The simulator runs the first-time adult form: 36 questions, 6 mistakes allowed, 83% to pass.

Take the simulator Get the app

Source: California Driver's Handbook (DL 600, rev. 6/2025), the document the DMV writes the real test from. Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.

More from Defensive Driving and Safe Driving Practices

Cookie preferences

Necessary

Required for the site to work: security, load balancing and remembering the choices you make here. These cannot be turned off.

Always

Analytics

Google Analytics 4. Tells us which pages people read and where the study material falls short. We look at it in aggregate, never to identify you.

Advertising

Measuring how well our ads work. We run no advertising tags on this site today; the category exists so that any we add later stays blocked unless you allow it.