The modular ratio m of a concrete whose permissible compressive stress is C, may be obtained from the equation.

Related MCQs

• If the permissible compressive stress for a concrete in bending is C kg/m2 , the modular ratio is
• If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is
• If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is
• If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:
• 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
• If is the sectional area of a pre-stressed rectangular beam provided with a tendon pre-stressed by a force through its centroidal longitudinal axis, the compressive stress in concrete, is
• In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called
• The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or
• A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is
• The maximum shear stress (q) in concrete of a reinforced cement concrete beam is