Friction surface is defined as which of the following?

Friction surface is defined as which of the following?

• A. An interior or exterior surface that is smooth and non-abrasive
• B. An exterior surface that is not subject to wear
• C. An interior or exterior surface that is subject to abrasion or friction (certain window, floor, and stair surfaces)
• D. A surface that never comes into contact with skin or objects

Answer: (C)

Friction surfaces are the parts of a building that wear down through use—the surfaces that are rubbed, scraped, or brushed by people or objects. This includes interior or exterior surfaces that can experience abrasion, such as certain window components, floors, and stairs. The reason this is the right definition is that friction or wear on these surfaces can release lead dust or chips if lead-based paint is present, making them a focus in lead hazard assessments and abatement. The other descriptions don’t fit because a friction surface isn’t defined as smooth and non-abrasive, nor as never wearing, nor as never coming into contact with people or objects.

Friction surfaces are the parts of a building that wear down through use—the surfaces that are rubbed, scraped, or brushed by people or objects. This includes interior or exterior surfaces that can experience abrasion, such as certain window components, floors, and stairs. The reason this is the right definition is that friction or wear on these surfaces can release lead dust or chips if lead-based paint is present, making them a focus in lead hazard assessments and abatement.

The other descriptions don’t fit because a friction surface isn’t defined as smooth and non-abrasive, nor as never wearing, nor as never coming into contact with people or objects.