If the span exceeds 6m then the bridge is called ______

In slab culverts RCC slab is placed over abudment of ______

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

The span of RCC slab is limited to ______

The continuity equation is given by ______

If the canal and drain at same level then the cross drainage structure is called ______

What is the minimum diameter used in pipe culverts?

The water that cannot be drained of by gravity is called _______