The gas evolved in sewers is________________?

Related Mcqs:

Pick up the correct statement from the following?

A. In treated sewage, 4 ppm of D.O. is essential B. Only very fresh sewage contains some dissolved oxygen C. The solubility of oxygen in sewage is 95% that is in distilled water D. All the above...

Pick up the correct statement from the following?

A. Hydrogen sulphide gas in excess, may cause corrosion of concrete sewers B. 4 ppm of Dissolved Oxygen (D.O.) is ensured before discharging the treated sewage in river C. Solubility of oxygen in sewage is 95% of that of distilled water D. All the above...

Primary treatment of sewage consists of removal of__________________?

A. Large suspended organic solids B. Oil and grease C. Sand and girt D. Floating materials...

The disintegrating pump in which solid matter is broken up before passing out, is__________________?

A. Centrifugal pump B. Reciprocating pump C. Pneumatic ejector D. None of these...

A rain sanitary sewer is constructed to carry_________________ ?

A. Sanitary sewage B. Storm sewage C. Surface water D. Ground water...