Building Construction

181) The rise of the arch is defined as the clear vertical distance between

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the springing line and the highest point on intrados

182) The voussoir fixed at the crown of the arch is called

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key

183) Arches over openings are preferred to lintel beams when

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all the above

184) The bearing of the lintel should be

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minimum of the above values

185) A spiral stair is used when

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there is space restriction

186) A stair that changes its direction by 180° is

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half-turn stair

187) A vertical member supporting the hand rail is known as

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baluster

188) A level platform at the top or bottom of a flight between the floors is known as

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landing

189) A group of tapering steps radiating from same point is known as

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winders

190) A continuous series of steps between landings is called

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flight

Subject Notes

Objective Box

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