RCC Structures Design
An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm φ placed symmetrically along the circumference. If it carries a load of 40,000 kg axially, the stress is

100 kg/cm²
250 kg/cm²
49.9 kg/cm²
175 kg/cm²

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RCC Structures Design
A pre-stressed concrete member is preferred because

Large size of long beams carrying large shear force need not be adopted
Its dimensions are not decided from the diagonal tensile stress
Removal of cracks in the members due to shrinkage
All listed here

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