California Driver License (DMV) Written Practice Test

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Ace your California DMV written test! Prepare for the exam by practicing hundreds of multiple-choice questions covering traffic laws and road signs. Boost your knowledge, gain confidence, and increase your chances of passing the test on your first try.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How far ahead must you signal when turning or changing lanes?

15-50 feet
50-100 feet
100-200 feet
200-300 feet

The correct answer is: 50-100 feet

When turning or changing lanes, it is important to signal at least 50-100 feet before making the maneuver. This distance allows other drivers to be aware of your intentions and gives them enough time to react accordingly. Options A and C are incorrect because 15-50 feet and 100-200 feet, respectively, may not give other drivers enough time to adjust their speed or position. Option D is also incorrect because signaling too early, at 200-300 feet, could potentially confuse other drivers if there are multiple turns or lanes in that distance. Therefore, it is important to signal within the range of 50-100 feet for safe and effective communication with other drivers on the road.