The sewage treatment in septic tanks is due to__________________?

Related Mcqs:

Pick up the correct statement from the following ?

A. Maximum daily flow = 2 times the average daily flow B. Maximum daily flow = average daily flow C. Sewers are designed for minimum permissible velocity at minimum flow D. All the above...

A well oxidized sewage contains nitrogen mainly as___________________?

A. Nitrates B. Nitrites C. Free ammonia D. None of these...

A manhole is generally provided at each__________________?

A. Bend B. Junction C. Change of gradient D. All the above...

With self cleansing velocity in sewers___________________?

A. Silting occurs at bottom B. Scouring occurs at bottom C. Both silting and scouring occur at bottom D. Neither silting nor scouring occurs at bottom...

The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is____________________?

A. 100 cm B. 110 cm C. 120 cm D. 150 cm...