RCC Structures Design

221. The width of the flange of a L-beam, should be less than

1. One-sixth of the effective span
2. Breadth of the rib + four times thickness of the slab
3. Breadth of the rib + half clear distance between ribs
4. Least of the above

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222. The width of the flange of a T-beam should be less than

1. One-third of the effective span of the T-beam
2. Distance between the centres of T-beam
3. Breadth of the rib plus twelve times the thickness of the slab
4. Least of the above

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223. The width of the flange of a T-beam, which may be considered to act effectively with the rib depends upon

1. Breadth of the rib
2. Overall thickness of the rib
3. Centre to centre distance between T-beams
4. All the above

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224. The width of the rib of a T-beam, is generally kept between

1. 1/7 to 1/3 of rib depth
2. 1/3 to 1/2 of rib depth
3. 1/2 to 3/4 of rib depth
4. 1/3 to 2/3 of rib depth

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225. The Young's modulus of elasticity of steel, is

1. 150 KN/mm²
2. 200 KN/mm²
3. 250 KN/mm²
4. 275 KN/mm²

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226. The zone in which transverse bending is likely to occur may be obtained by drawing a line from the faces of the column making an angle θ° with horizontal where θ° is

1. 30°
2. 45°
3. 60°
4. None of these

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227. Thickened part of a flat slab over its supporting column, is technically known as

1. Drop panel
2. Capital
3. Column head
4. None of these

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228. Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as

1. 1/8th of the span
2. 1/10th of the span
3. 1/12th of the span
4. 1/16th of the span

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229. To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is

1. 0.107 L
2. 0.207 L
3. 0.307 L
4. 0.407 L

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230. To ensure uniform pressure distribution, the thickness of the foundation, is

1. Kept uniform throughout
2. Increased gradually towards the edge
3. Decreased gradually towards the edge
4. Kept zero at the edge

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