Concrete Technology and Design of Concrete Structures
Critical section for shear in case of flat slabs is at a distance of

effective depth of slab from periphery of column/drop panel
at the periphery of column
at the drop panel of slab
d/2 from periphery of column/capital/ drop panel

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Concrete Technology and Design of Concrete Structures
Examine the following statements :
i) Factor of safety for steel should be based on its yield stress,
ii) Factor of safety for steel should be based on its ultimate stress,
iii) Factor of safety for concrete should be based on its yield stress,
iv) Factor of safety for concrete should be based on its ultimate stress.
The correct statements are

(ii) and (iii)
(i) and (iv)
(ii) and (iv)
(i) and (iii)

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