91. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is
92. If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm2, the length of the beam having nominal reinforcement, is
93. Dimensions of a beam need be changed if the shear stress is more than
94. The minimum cube strength of concrete used for a pre-stressed member, is
95. Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at
96. 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
97. The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation.
98. The minimum number of main steel bars provided in R.C.C.
99. The shear reinforcement in R.C.C. is provided to resist
100. In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups provided are
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