California Driver License (DMV) Written Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

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.

When is it legal to drive in a carpool lane?

When at least two riders are in the vehicle
When at least three riders are in the vehicle
When at least four riders are in the vehicle
When at least five riders are in the vehicle

The correct answer is: When at least three riders are in the vehicle

Carpool lanes, also known as high-occupancy vehicle (HOV) lanes, are designated lanes on highways that are reserved for vehicles with a specified number of riders. These lanes are intended to improve traffic flow and reduce air pollution. In most states, it is legal to drive in a carpool lane when there are at least two or more riders in a vehicle. Therefore, options A, C, and D are incorrect as they do not meet the minimum requirement for driving in a carpool lane. While some states may have specific rules and regulations regarding the number of riders required for carpool lanes, the general guideline is to have at least two or more riders in the vehicle.