The span of RCC slab is limited to ______

In slab culverts RCC slab is placed over abudment of ______

The D85 point size is given by ______

The time of flow in minutes for a longitudinal drain of 400 m and with a velocity of 0.8 m/sec is?

If the depth of a trapezoidal section is 0.50 m and free board is 0.15 m, then the total depth is?

The precautions should be mostly taken for drainage in ______

To fulfill the adequate permeability the D15 of filter/D15 of foundation ratio should be greater than ______

The relationship between specific yield specific retention and porosity is ______