CDL · Hazardous materials

Which hazard classes require that no one smoke or light a flame within 25 feet of the vehicle carrying them?

Correct answer: Any material in Class 1, Division 2.1, Class 3, Class 4, or Class 5.

Answer options

  1. AOnly explosives in Division 1.1 or 1.2
  2. BOnly materials in Classes 6, 7, 8, or 9
  3. CAny material in Class 1, Division 2.1, Class 3, Class 4, or Class 5 Correct

Why

A spark can set off explosives, flammable gases, liquids, and solids, and oxidizers make a fire burn harder, so smoking and open flames are banned within 25 feet of a vehicle hauling Class 1, Division 2.1, Class 3, Class 4, or Class 5 material.

About this question

Topic: Hazardous materials   License: CDL

Part of these practice sets:

Where it applies: Asked in every state.

Practice the whole set

This question is part of Loading and Unloading HazMat (32 questions). Take the full set and check your score.

Practice Loading and Unloading HazMat

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.