NFPA-99 Practice Exam

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Study for the NFPA-99 Exam with comprehensive quizzes that include multiple-choice questions, hints, and explanations. Prepare effectively to demonstrate your proficiency in healthcare facility regulations.

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What type of tube hanger should be used for potentially damp locations?

Carbon steel
Copper coated
Plastic coated or insulated with material that will be non-absorbent
Solid copper

The correct answer is: Plastic coated or insulated with material that will be non-absorbent

For potentially damp locations, it is essential to use a tube hanger that is designed to resist moisture and prevent corrosion. The correct choice, which involves using a hanger that is plastic coated or insulated with a non-absorbent material, effectively addresses this requirement. The plastic coating provides a layer of protection against moisture and helps to maintain the integrity of the underlying materials, reducing the risk of rust and deterioration over time. In environments where moisture is prevalent, using materials that can absorb water, such as carbon steel or solid copper, would lead to issues like rusting or corrosion, which can compromise the stability and reliability of the installation. The choice of plastic coating or insulation ensures that the hanger remains functional and safe, even in damp environments, contributing to the overall safety and longevity of the electrical systems being supported. Additionally, the copper-coated option does not provide the same level of moisture protection as the insulated or coated alternatives, which is why it is not the best choice for damp locations. Thus, using tube hangers that are designed for these specific conditions is critical for maintaining safety standards.