RCC Structures Design
The thickness of base slab of a retaining wall generally provided, is

One half of the width of the stem at the bottom
One-third of the width of the stem at the bottom
Width of the stem at the bottom
One fourth of the width of the steam at the bottom

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RCC Structures Design
If the shear stress in a R.C.C. beam is

Greater than 4 kg/cm², but less than 20 kg/cm², shear reinforcement is provided
Equal or less than 5 kg/cm², no shear reinforcement is provided
All of these
Greater than 20 kg/cm², the size of the section is changed

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