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RCC Structures Design

RCC Structures Design
A ribbed slab is provided for

All of these
A plain ceiling
Acoustic insulation
Thermal insulation

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RCC Structures Design
The toe projection of foundation slabs is taken

As one sixth of overall height of the wall
As one third of the base
Below ground surface
Equal to heel slab

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RCC Structures Design
The minimum head room over a stair must be

210 cm
200 cm
230 cm
205 cm

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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

0.696 %
0.796 %
0.496 %
0.596 %

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RCC Structures Design
Long and short spans of a two way slab are ly and lx and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. According to Rankine Grashoff theory

None of these
(wx/wy) = (ly/lx)
(wx/wy) = (ly/lx)²
(wx/wy) = (ly/lx)⁴

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RCC Structures Design
To have pressure wholly compressive under the base of a retaining wall of width b, the resultant of the weight of the wall and the pressure exerted by the retained, earth should have eccentricity not more than

b/3
b/6
b/4
b/5

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