Building Construction

21) A suitable door for entrance conditioned building is a

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revolving door

22) For good bonding in brick masonry

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the vertical joints in alternate courses should fall in plumb

23) The opening left in flat roofs for lighting purposes is called

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24) In 10 DS 20, DS refers to

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single shutter door

25) Doglegged stairs are

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half turn stairs

26) The minimum width of landing should be

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equal to width of stairs

27) The number of steps in a flight generally should not be less than

28) The vertical posts placed at the top and bottom ends of a flight supporting the handrail are known as

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newal posts

29) The lower edge of the pitched roof, from where the rainwater of the roof surface drops down, is known as

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30) King closers are related to

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brick masonry

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