In water treatment, rapid gravity filters are adopted to remove_______________?

Related Mcqs:

The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is________________?

A. circle method B. equivalent pipe method C. electrical analysis method D. Hardy cross method...

In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be___________?

A. 100 ppm B. 200 ppm C. 300 ppm D. 400 ppm...

Sewage treatment units are designed for_______________?

A. maximum flow only B. minimum flow only C. average flow only D. maximum and minimum flow...

The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is_________________?

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

The settling velocity of a particle in a sedimentation tank increases if_________________?

A. particle size is decreased B. the surface area of tank is increased C. the depth of tank is decreased D. none of the above...