RCC Structures Design
If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is

All listed here
K/x (1 + x/d) + bw
Kx (1 - x/l) + bw
Kx (1 + x/l) + bw

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RCC Structures Design
If the shear stress in a R.C.C. beam is

Greater than 4 kg/cm², but less than 20 kg/cm², shear reinforcement is provided
Equal or less than 5 kg/cm², no shear reinforcement is provided
Greater than 20 kg/cm², the size of the section is changed
All of these

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RCC Structures Design
According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is

None of these
Stress in concrete × area of concrete
Stress in steel × area of steel
Stress in concrete × area of concrete + Stress in steel × area of steel

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RCC Structures Design
If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight 'w' per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is

h = √(W/Aw) [(1 - sin φ)/(1 + sin φ)]²
h = (W/Aw) [(1 + sin φ)/(1 + sin φ)]
h = (W/Aw) [(1 - sin φ)/(1 + sin φ)]²
h = (W/Aw) [(1 - sin φ)/(1 + sin φ)]

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