RCC Structures Design

201. The number of treads in a flight is equal to

1. Risers in the flight
2. Risers plus one
3. Risers minus one
4. None of these

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202. The percentage of minimum reinforcement of the gross sectional area in slabs, is

1. 0.10 %
2. 0.12 %
3. 0.15 %
4. 0.18 %

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203. The pitch of the main bars in a simply supported slab, should not exceed its effective depth by

1. Three times
2. Four times
3. Five times
4. Six times

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204. The radius of a bar bend to form a hook, should not be less than

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

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205. The ratio of the breadth to effective depth of a beam is kept

1. 0.25
2. 0.5
3. 0.7
4. 0.75

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206. The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm², safe shear stress 5 kg/cm² and B.M. 24 mt,

1. Is safe in shear
2. Is unsafe in shear
3. Is over safe in shear
4. Needs redesigning

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207. The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called

1. Balanced section
2. Economic section
3. Critical section
4. All the above

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208. The self-weight of the footing, is

1. Not considered for calculating the upward pressure on footing
2. Also considered for calculating the upward pressure on footing
3. Not considered for calculating the area of the footing
4. Both (b) and (c)

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209. The shear reinforcement in R.C.C. is provided to resist

1. Vertical shear
2. Horizontal shear
3. Diagonal compression
4. Diagonal tension

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210. The spacing of transverse reinforcement of column is decided by the following consideration.

1. The least lateral dimension of the column
2. Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column
3. Forty-eight times the diameter of transverse reinforcement
4. All the above

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