Standard BOD is measured at________________?

Related Mcqs:

The depression of water table in a well due to pumping will be maximum_______________?

A. at a distance R from the well B. close to the well C. at a distance R/2 from the well D. none of the above where R is the radius of influence...

Alum as a coagulant is found to be most effective when pH range of water is______________?

A. 2 to 4 B. 4 to 6 C. 6 to 8 D. 8 to 10...

Laying of sewers is usually done with the help of________________?

A. a theodolite B. a compass C. sight rails and boning rods D. a plane table...

When there is no recirculation of sewage, then recirculation factor is_______________?

A. 0 B. 1 C. infinity D. none of the above...

Which of the following compounds is widely used for algae control ?

A. sodium sulphate B. copper sulphate C. sodium chloride D. calcium chloride...