Building Construction

181. The members which support covering material of a sloping roof, are

1. Rafters
2. Purlins
3. Battens
4. Struts

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182. The method of moving each brick through a small horizontal distance before it is finally laid in any brick wall and pressing it by means of brick hammer, is known as

1. Trowelling
2. Laying
3. Grouting
4. Placing

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183. The minimum depth of foundation in clayey soils is

1. 0.5 m
2. 0.7 m
3. 0.9 m
4. 1.2 m

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184. The minimum distance between the centres of bulb of diameter du, of a multi under reamed piles, is

1. du
2. 1.25 du
3. 1.5 du
4. 1.75 du

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185. The minimum strength of the mortar used in load bearing brick masonry, is

1. 50 N/cm2
2. 100 N/cm2
3. 150 N/cm2
4. 200 N/cm2

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186. The minimum thickness of walls built in cement mortar (1 : 6) for a single storey building, is

1. 10 cm
2. 15 cm
3. 20 cm
4. 25 cm

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187. The minimum width of a stair in residential buildings, is

1. 55 cm
2. 70 cm
3. 85 cm
4. 100 cm

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188. The mortar in which both cement and lime are used as binding materials, is called

1. Cement mortar
2. Lime mortar
3. Fire resistant mortar
4. Gauged mortar

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189. The nominal thickness of an expansion joint in brick walls, is kept more than

1. 5 mm
2. 10 mm
3. 15 mm
4. 20 mm

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190. The nominal thickness of one brick wall in mm, is

1. 90 mm
2. 150 mm
3. 190 mm
4. 200 mm

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