The assumption on which the trapezoidal formula for volumes is based, is

What are the product gases of anaerobic digestion?

The concrete used for cement concrete roads is of grade .......................

The damp proof course (D.P.C.) is measured in

The position of the backfill lying above the horizontal plane at the top of wall is called

On designing retaining walls it is necessary to take care of .....................exerted by soil mass.

The size of the faeces drop hole in the floor or slab should not be larger than

Pick up the correct statement from the following:

The area of a sloping surface of a protective embankment of mean height ‘d’, side slopes S : 1 and length &l…