## 16. A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis

## 17. An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm^{2}, the beam

^{2}, the beam

## 18. A pre-stressed rectangular beam which carries two concentrated loads W at $$\frac{{\text{L}}}{3}$$ from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is

## 19. According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is

## 20. If the permissible compressive stress for a concrete in bending is C kg/m^{2}, the modular ratio is

^{2}, the modular ratio is

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