CDL · CDL general knowledge

Which practice for warning traffic about your stopped vehicle is the right one?

Which practice for warning traffic about your stopped vehicle is the right one?

Correct answer: If a hill or curve hides your vehicle from drivers behind you within 500 feet, set the rear triangle farther back.

Answer options

  1. AWarning triangles are needed only when you expect the vehicle to stay stopped for 30 minutes or longer.
  2. BLeaving the taillights on is the proper way to warn drivers who are coming up behind your stopped vehicle.
  3. CIf a hill or curve hides your vehicle from drivers behind you within 500 feet, set the rear triangle farther back. Correct

Why

Warning triangles only help if approaching drivers can see them in time, so when a hill or curve blocks the view, the rearmost one goes farther back. They must be set out soon after any stop on the road or shoulder, not just long ones, and taillights alone can make other drivers think the vehicle is still moving.

About this question

Topic: CDL general knowledge   License: CDL

Part of these practice sets:

Where it applies: Asked in every state.

Practice the whole set

This question is part of Crash Scenes and Vehicle Fires (13 questions). Take the full set and check your score.

Practice Crash Scenes and Vehicle Fires

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.