If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is__________________?

Related Mcqs:

The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is__________________?

A. Vs = 418 (Gs – Gw) d [(3T + 70)/100] B. Vs = 418 (Gs – Gw)d² [(3T + 70)/100] C. Vs = 218 (Gs – Gw)d² [(3T + 70)/100] D. Vs = 218 (Gs – Gw)d [(3T + 70)/100]...

The disintegrating pump in which solid matter is broken up before passing out, is__________________?

A. Centrifugal pump B. Reciprocating pump C. Pneumatic ejector D. None of these...

Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities_________________?

A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is not a correct explanation of A C. A is true but R is false D. A is false but R is true...

During purification process of sewage the gas given off, is________________?

A. Carbon dioxide B. Hydrogen C. Ammonia D. All the above...

The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is______________?

A. 0.68 m B. 0.88 m C. 1.36 m D. 1.76 m...