RCC Structures Design
On an absolutely rigid foundation base, the pressure will

Be zero at the centre of the foundation
Be uniform
Not be uniform
Be more at the edges of the foundation

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RCC Structures Design
Pick up the assumption for the design of a pre-stressed concrete member from the following:

A transverse plane section remains a plane after bending
Variation of stress in reinforcement due to changes in external loading is negligible
During deformation limits, Hook's law is equally applicable to concrete as well as to steel
All listed here

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