The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is____________________?

Related Mcqs:

For treating the sewage of a large city, you will recommend_________________?

A. A sedimentation tank and an activated sludge treatment plant B. A plant consisting of Imhoff tanks with low rate trickling filters C. Sedimentation tanks with high rate trickling filters D. None of these...

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]...

In detritus tanks______________________?

A. Flow velocity is kept 0.09 m/sec B. Detention period is kept 3 to 4 minutes C. Organic and inorganic materials are separated D. All the above...

The sewerage system consists of______________________?

A. House sewer B. Lateral sewer C. Branch sewer D. All of these...

In sewage, the solids in mg per litre is__________________?

A. 100 to 500 B. 500 to 1000 C. 1000 to 1500 D. 1500 to 2000...