Building Construction

281) In a three-coat plastering the third coat is known as

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setting coat

282) In single coat plastering the thickness of plastering should not exceed

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12 mm

283) In a three coat plastering the first coat is known as

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rendering coat

284) If single coat plastering is adopted what is its minimum thickness

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6 mm

285) A vertical strip of mortar formed on the surface to be plastered before first coat, is known as

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screed

286) The dampness in the buildings may be caused due to

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all of the above

287) The props of from work of the beams with span exceeding 6 m can be removed after

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21 days

288) The surface to which the first coat of plaster is to be applied is called

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back ground surface

289) The comfortable temperature range in summer may be generally taken as

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20 to 23°C

290) Quick sand

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none of the above

Subject Notes

Objective Box

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