RCC Structures Design
The load stress of a section can be reduced by

Decreasing the lever arm
Replacing larger bars by greater number of small bars
Replacing smaller bars by greater number of greater bars
Increasing the total perimeter of bars

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RCC Structures Design
The angle of internal friction of soil mass is the angle whose

Tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
None of these
Cosine is equal to the ratio of the maximum resistance sliding on any internal inclined plane to the normal pressure acting on the plane
Sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane

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