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RCC Structures Design

RCC Structures Design
If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is

55
50
45
40

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RCC Structures Design
An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at

35°
25°
55°
45°

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RCC Structures Design
If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be

8hl/p²
8hl/p
8hp/l
8hp/l²

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RCC Structures Design
The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm² and 250 kg/cm² respectively. If m = 15, the depth of its neutral axis is

30 cm
35 cm
25 cm
20 cm

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RCC Structures Design
A foundation rests on

Base of the foundation
Foundation soil
Both B and C
Sub-grade

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RCC Structures Design
If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm² and 1400 kg/cm² respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is

0.496 %
0.696 %
0.796 %
0.596 %

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