Growth of algae is useful in

Most significant gaseous air pollutant is

Pipe which carries discharges from sanitary fittings such as water closets urinals etc called

A septic tank is a

In the last man hole of house drainage system. The trap provided

The term which is measured as vertical distance between crown and dip of trap

The sewer appurtenance constructed to provide a connection between the high level branch sewer to low level main sewer

The system of carrying sewage through sewer

Method of cleaning rapid sand filter

The minimum velocity which will prevent the singing of particles in sewers

Which of the following equipment can be used for removal of paper and rags from sewers

All traps have a

Stall type urinals are best suited for

Minimum dia of manhole is

Drive sludge is good

Mostly adopted detonation period for septic tank under indian condition is

A natural method of disposal of sewage is

Circular section of sewer is very common but it's best suited when dia is up to

Bacteria die at temperature is more than