Driver's License Test Prep
California Practice Traffic Lights

The traffic light at an intersection you are approaching is completely dark. What should you do?

  1. A.
    Stop as if the intersection is controlled by stop signs in all directions. Correct
  2. B.
    Yield to any vehicle already inside the intersection and proceed.
  3. C.
    Continue through at the posted limit if the way looks clear.
The Why

The answer is "Stop as if the intersection is controlled by stop signs in all directions."

When a traffic light is not working, treat the intersection as if it were controlled by stop signs in all directions, then proceed cautiously when it is safe. The 'yield to any vehicle already inside' choice describes an uncontrolled-intersection rule; a driver who reads a dark signal as no signal at all skips the four-way-stop step the manual requires.

Why the others miss

The traps in the wrong answers

B. Yield to any vehicle already inside the intersection and proceed.

Describes an uncontrolled-intersection rule, which skips the four-way-stop step the manual requires. This answer reads a dark signal as no signal at all and applies the intersection-without-signs yield rule instead of the four-way stop.

C. Continue through at the posted limit if the way looks clear.

Treats a dark signal as no traffic control at all, which ignores the required stop in every direction. This answer assumes a nonworking signal removes all restrictions, so approaches the intersection at the posted speed.

The Rule

This question tests your knowledge of Traffic Lights in California. Source: California Driver Manual, "Traffic Signals: Traffic Light Not Working," p.34..

More from this topic

Related California questions

More than a book

You just took one California question apart. The book does it for the whole test.

The California book unlocks a free companion: an adaptive study plan, progress synced across your devices, a denser laminate cheat sheet, and a test-day walkthrough. Verify your copy once, usually in seconds; there's nothing extra to buy.

Get the book on Amazon

$18.99 paperback, free companion included.

Free study plan

Your free California study plan

A short run of study emails for the California DMV test: what to drill, the rules people trip on, and a final pre-test checklist. The printable cheat sheet is free to grab either way.

One email a few times a month. No spam, unsubscribe anytime. Privacy.