Car permit · Regulatory signs

Minimum speed 45: Why is a minimum speed sign like this one posted?

Minimum speed 45

Correct answer: To keep drivers from going so slowly that they create a hazard.

Answer options

  1. ATo warn you that traffic ahead may soon come to a stop
  2. BTo tell you the highest speed you may legally drive
  3. CTo keep drivers from going so slowly that they create a hazard Correct

Why

A minimum speed sign, such as the MINIMUM SPEED 40 sign shown, sets the lowest speed allowed on that road when conditions are normal. A vehicle crawling far below the pace of traffic makes others brake hard or swerve around it, creating a hazard much like speeding does.

About this question

Topic: Regulatory signs   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 Sign Shapes, Colors and Rules (20 questions). Take the full set and check your score.

Practice Sign Shapes, Colors and Rules

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.