RCC Structures Design
If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by

(5/6) (r²/1 + r²) M
(5/6) (r²/1 + r⁴) M
(5/6) (r²/1 + r³) M
(5/6) (r/1 + r²) M

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

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

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