RCC Structures Design

181. The length of the straight portion of a bar beyond the end of the hook, should be at least

1. Twice the diameter
2. Thrice the diameter
3. Four times the diameter
4. Seven times the diameter

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182. The live load to be considered for an accessible roof, is

1. Nil
2. 75 kg/m³
3. 150 kg/m²
4. 200 kg/cm²

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183. The live load to be considered for an inaccessible roof, is

1. Nil
2. 75 kg/m²
3. 150 kg/cm²
4. 200 kg/m²

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184. The load stress of a section can be reduced by

1. Decreasing the lever arm
2. Increasing the total perimeter of bars
3. Replacing larger bars by greater number of small bars
4. Replacing smaller bars by greater number of greater bars

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185. The maximum area of tension reinforcement in beams shall not exceed

1. 0.15 %
2. 1.5 %
3. 4 %
4. 1 %

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186. The maximum diameter of a bar used in a ribbed slab, is

1. 12 mm
2. 6 mm
3. 20 mm
4. 22 mm

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187. The maximum permissible size of aggregates to be used in casting the ribs of a slab, is

1. 5 mm
2. 7.5 mm
3. 10 mm
4. 15 mm

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188. The maximum ratio of span to depth of a cantilever slab, is

1. 8
2. 10
3. 12
4. 16

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189. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is

1. 35
2. 25
3. 30
4. 20

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190. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is

1. 25
2. 30
3. 35
4. 40

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