Under natural conditions of flow, an unpolluted river would contain ______

Biochemical Oxygen Demand (BOD) of sewage is the _____

The waste stabilization ponds can be

The total domestic consumption in a city water supply is assumed as

The source of surface water is from ______

In two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

M 10 grade of concrete approximates

Pathogenic bacteria, enter wastewaters, primarily from _____

Permissible compressive strength of M 300 concrete grade is

A water supply scheme has to be designed for a city having a population of 1,00,000. If annual average daily consumption of water is 250 lpcd, then maximum daily draft will be

Colours of fresh and septic sewage respectively are ______

The source of surface water is from ______

The distribution system configuration shown in the figure given is called

For ensuring quality of concrete, use ______

The standard sand now a days used in India, is obtained from _______