The use of the unit hydrograph for estimating floods is limited to catchments of size less than

The colour of lights used for visibility during fog is:

As per Indian Standard Specifications, the peak discharge for domestic purposes per capita per minute, is taken

Indian standard for acceptable limit of arsenic is

A city supply of 15000 cubic meters of water per day is treated with a chlorine dosage of 0.5 ppm. For this purpose, the requirement of 25% bleaching powder per day would be :

Pedestal columns are

In a RC retaining wall, a shear key is provided, if the-

Maximum width of crack in RC water retaining structures is restricted to

The detention period in coagulation tanks is usually kept as

Autofrettage is the method of

The shear centre of a section is defined as that point:

If the Euler load for a steel column is 1000 kN and crushing load is 1500 kN, the Rankine load is equal to