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_________ stairs are now commonly used in all types of construction and in case of a frame structure of reinforced concrete.

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_________ stairs are now commonly used in all types of construction and in case of a frame structure of reinforced concrete.

(a) RCC

(b) Brick

(c) Stone

(d) Metal

I had been asked this question in an interview for job.

The query is from Stairs of Different Materials in division Arches, Lintels, Stairs and Formwork of Construction & Building Materials

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Correct choice is (a) RCC

Easy explanation: The RCC stairs are found to resist wear and fire better than any other material and can be moulded to the desired shape. The steps can be provided with suitable finishing materials such as marble, terrazo tile, etc. These stairs can be easily maintained clean and they are strong, durable and pleasing in appearance.

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