1.

__________ do not radiate from a common centre.(a) Common step(b) Dancing steps(c) Tread(d) WaistThe question was asked during an interview.My doubt stems from Stairs Technical Terms topic in section Arches, Lintels, Stairs and Formwork of Construction & Building Materials

Answer» CORRECT choice is (b) Dancing steps

Explanation: Whereas, the thickness of the STRUCTURAL SLAB in case of an RCC Stair is known as a waist. And, the horizontal upper portion of the stair is known as a TREAD.


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