RCC Structures Design
If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is

w (R/T)
w √(R² + T²)/T
w (R + T)/T
w √(R + T)/T

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

Greater than 20 kg/cm², the size of the section is changed
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

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