The modular ratio m of a concrete whose permissible compressive stress is C, may be obtained from the equation.
A. m = 700/3C
B. m = 1400/3C
C. m = 2800/3C
D. m = 3500/3C
A. m = 700/3C
B. m = 1400/3C
C. m = 2800/3C
D. m = 3500/3C
A. 0.496 %
B. 0.596 %
C. 0.696 %
D. 0.796 %
A. 2WR²/16
B. 3WR²/16
C. 5WR²/16
D> NON OF THESE
A. To overcome high bearing stresses developed at the ends
B. To overcome bursting stresses at the ends
C. To provide high bond stresses
D. All the above
A. One -half lever arm of the section
B. One-third lever arm of the section
C. Lever arm of the section
D. One and half lever arm of the section
A. (wx/wy) = (ly/lx)
B. (wx/wy) = (ly/lx)²
C. (wx/wy) = (ly/lx)4
D. None of these
A. Distribute the load
B. Resist the temperature stresses
C. Resist the shrinkage stress
D. All the above
A. [( – )/2] h
B. [( + )/4] h
C. [( + )/2] h
D. ( – h
A. R + T
B. T – R
C. 2 + T2)
D. R – T
A. Shrinkage of concrete
B. Elastic shortening of concrete
C. Creep of concrete
D. All the above