Building Construction

71. In English garden wall bond

1. One course of headers to three or five course of stretchers
2. Queen closer in provided in each heading course
3. The middle course of stretchers is started with a header to give proper vertical joints
4. All the above

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72. In flat roof of reinforced cement concrete, the recommended angle of slope, is

1. Zero
2. A few degrees
3. 10°
4. 200°

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73. In grillage foundations a minimum 15 cm cover is provided on

1. Upper flange of top tier
2. Lower beam of lower tier
3. Ends of external beams
4. None to these

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74. In grillage foundations, distance between flanges of grillage beams, is kept

1. 40 cm
2. Equal to flange width
3. Twice the flange width
4. Maximum of (a), (b) and (c)

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75. In high mountainous region, the type of roof generally recommended for buildings, is

1. Shed type
2. Gable type
3. Gambrel type
4. Mansard type

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76. In horizontal D.P.C, thickness of cement concrete (1 : 2 : 4) is

1. 2 cm
2. 4 cm
3. 6 cm
4. 8 cm

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77. In jack arch floor, the rise is kept

1. 1/6th of the span
2. 1/8th of the span
3. 1/10th of the span
4. 1/12th of the span

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78. In ordinary residential and public buildings, the damp proof course is generally provided at

1. Ground level
2. Plinth level
3. Water table level
4. Midway ground level and water-table level

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79. In places where the soil is soft and has small resistance to the flow of concrete, which one of the following types of piles, is used

1. Vibro pile
2. Pressure pile
3. Franki pile
4. Pedestal pile

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80. In soft clay of low bearing capacity, the type of steel pile generally used, is

1. H-pile
2. Screw pile
3. Disc pile
4. Pipe pile

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