The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is______________?
In SI units the power of sound is represented in __________________?
For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed________________?
The coagulant widely used for sewage treatment, is_________________?
In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is____________________?
The sewage treatment in septic tanks is due to__________________?
If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by_________________?
3.0 ml of raw sewage is diluted to 300 ml. The D.O. concentration of the diluted sample at the beginning of the test was 8 mg/l. After 5 day-incubation at 20°C, the D.O. concentration was 5 mg/l. The BOD of raw sewerage is______________________?
Assertion A.: The minimum self cleansing velocity in the sewer, at least once a day, must be generated. Reason (R): If certain deposition takes place and is not removed, it obstructs free flow and causes further deposition leading to complete blocking of the sewer?
Dry water flow in a combined sewer, is______________________?
