Which of the following is not a water borne disease ?

Related Mcqs:

As compared to shallow-wells, deep wells have______________?

A. more depth B. less depth C. more discharge D. less discharge...

The percentage of filtered water, which is used for backwashing in rapid sand filters, is about______________?

A. 0.2 to 0.4 B. 0.4 to 1.0 C. 2 to 4 D. 5 to 7...

If the sewage contains grease and fatty oils, these are removed in_________________?

A. grit chambers B. detritus tanks C. skimming tanks D. sedimentation tanks...

Sludge volume index is defined as the ratio of_______________?

A. percentage of sludge by volume to percentage of suspended solids by weight B. percentage of sludge by volume to percentage of total solids by weight C. percentage of suspended solids by weight to percentage of sludge by volume D. percentage of total solids by weight to percentage of sludge by volume...

As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is___________________?

A. smaller B. larger C. same D. none of the above...