Building Construction

271) How many treads would be there in a dog-legged stair connecting two floor with a height difference of 3.6 m? The rise of the steps in 15 cm

272) The tool normally used by carpenters to plane the surface

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jack plane

273) The tool used for cutting small moulding along the edges

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rebate plane

274) U-shaped pieces made of wrought iron with pointed ends which are used to connect the members are known as

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dogs

275) A window provided on a pitched roof parallel and slightly above the sloping roof surface is known as

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sky light

276) A small wooden block hinged on the post outside the door is known as

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stop

277) The maximum allowable deflection of a timber beam supporting a roof of span L is

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L/360

278) A window with a fixed glass provided on the flat roof is known as

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lantern window

279) The window projecting beyond the main external wall is

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bay window

280) In a three coat plastering the second coat is known as

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floating coat

Subject Notes

Objective Box

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