Car permit · Signals and markings

A single dashed line, white or yellow, separates two lanes. When may you NOT cross it?

A single dashed line, white or yellow, separates two lanes. When may you NOT cross it?

Correct answer: When doing so would get in the way of other traffic.

Answer options

  1. AWhen overtaking a car on its right side on a one-way street
  2. BWhen doing so would get in the way of other traffic Correct
  3. CWhen making a left turn into a driveway

Why

A single dashed line lets you pass or change lanes, but only when the move is safe and does not disrupt other vehicles. If crossing would force another driver to brake or swerve, stay in your lane.

About this question

Topic: Signals and markings   License: Car permit

Part of these practice sets:

Where it applies: Asked in every state. Compare permit tests by state

Practice the whole set

This question is part of Traffic Lights and Pavement Markings (17 questions). Take the full set and check your score.

Practice Traffic Lights and Pavement Markings

Practice on your phone.

Practice here in your browser, or use the app with the same questions and explanations. It's free on the App Store.