14. What kind of material is commonly used while ascending or descending stairways and escalators in order to prevent injurious falls?
A. Handrail B. Molding
C. Siding wood board D. S4S
15. What do you call to a board installed on the exterior part of a building to protect the building from bad weather condition?
A. Baseboard B. Floorboard
C. Molding D. Siding wood board
A. Handrail B. Molding
C. Siding wood board D. S4S
15. What do you call to a board installed on the exterior part of a building to protect the building from bad weather condition?
A. Baseboard B. Floorboard
C. Molding D. Siding wood board
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14. A.Handrail
15. D. Siding wood board or Roof sheathing—The boards that provide the base for the finished roof. In newer construction, roof sheathing is composed of sheets of plywood, or oriented strand board (OSB). Roofing—The wood, asphalt or asbestos shingles—or tile, slate, or metal—that form the outer protection against the weather.
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