CDL · Hazardous materials

A trailer that has a heater or cooling unit for its cargo space should never be loaded with which three hazard classes?

Correct answer: Class 1, Division 2.1, and Class 3.

Answer options

  1. AClass 1, Class 3, and Division 6.1
  2. BClass 1, Division 2.1, and Class 3 Correct
  3. CDivision 2.2, Division 4.1, and Class 8

Why

Class 1 explosives, Division 2.1 flammable gases, and Class 3 flammable liquids fall under special cargo heater rules that generally forbid heaters in the cargo space, including combined heater and air conditioner units. Heat can cause these materials to ignite or explode.

About this question

Topic: Hazardous materials   License: CDL

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