Manufacturing Skill Standards Council (MSSC) Safety Assessment Practice Test

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Prepare for the MSSC Safety Assessment Exam. Utilize study materials and tackle multiple choice questions with guidance on each answer. Set yourself up for success!

Practice this question and more.

A class C fire is one that consists of burning _____________.

Exotic flammable metals
Live electrical lines or equipment
Paper, wood and rubber
Chemicals

The correct answer is: Live electrical lines or equipment

A class C fire specifically involves live electrical lines or equipment. These types of fires occur when electrical appliances, wiring, or other components of the electrical system are ignited. It's crucial to recognize this classification because the methods for extinguishing class C fires differ significantly from those used for other fire classes. For example, using water on a class C fire can pose a serious risk of electrical shock, which is why specialized extinguishing agents that are safe for electrical fires—such as carbon dioxide or dry chemical extinguishers—are recommended. The other options represent different classifications of fires. For instance, flammable metals pertain to class D fires, while paper, wood, and rubber are associated with class A fires. Chemicals can be related to class B fires, which involve flammable liquids and gases. Understanding these clarifications is essential for recognizing the proper safety protocols required for different types of fire hazards.