21.
In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at

24.
A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm² steel. If the modular ratio (m) is 15, the depth of the neutral axis, is

25.
As per IS : 456, the reinforcement in a column should not be less than

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