5 days-biochemical oxygen demand (BOD5) is taken at a temperature of_________________?

Related Mcqs:

Hume steel pipes are__________________?

A. Steel pipes B. Steel shell coated from inside with cement mortar C. Steel shell coated from outside with cement mortar D. Both B. and C....

The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called ____________________?

A. Inverted syphon B. Depressed sewer C. Sag pipe D. all of these...

The algae dies out in the zone of_____________________?

A. Degradation B. Active decomposition C. Recovery D. Cleaner water...

Pick up the correct statement from the following?

A. The boning rod is used for checking the levels of the sewer inverts B. Manhole covers are made circular for the convenience of the cleaning staff C. A manhole is classified as shallow manhole if its depth is less than 0.9 m D. All the above...

In a fully mechanised composting plant, involves________________?

A. Mechanized receipt B. Mechanized segregation C. Mechanized pulverising of refuse D. All of these...