The rate of filtration in slow sand filters in million litres per day per hectare is about_____________?

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...

Facultative bacteria are able to work in________________?

A. presence of oxygen only B. absence of oxygen only C. presence as well as in absence of oxygen D. presence of water...

For a country like India, where rainfall is mainly confined to one season, the suitable sewerage system will be________________?

A. separate system B. combined system C. partially combined system D. partially separate system...

As compared to geometrical increase method of forecasting population, arithmetical increase method gives________________?

A. lesser value B. higher value C. same value D. accurate value...