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

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

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Concrete Technology and Design of Concrete Structures
Select the incorrect statement...

None of these
Pretensioning system has greater certainty about its durability.
The loss of prestress is more in pre-tensioning system than in post-tensioning system.
For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system

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Concrete Technology and Design of Concrete Structures
If the foundations of all the columns of a structure are designed on the total live and dead load basis, then

the settlement of interior columns will be more than exterior columns
there will be no settlement of columns
there will be no differential settlement
the settlement of exterior columns will be more than interior columns

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