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.Management Sciences
A. Are water seals which prevent the entry of foul gases
B. Are used to trap the rats entering sewers
C. Dissolve the foul gases
D. Create symphonic action to increase the quick disposal of sewerage
Related Mcqs:
- No treatment of the sewage is given if dilution factor is_____________?
- A. Less than 150 B. Between 150 to 200 C. Between 200 to 300 D. More than 500...
- Self-cleansing velocity is__________________?
- A. Velocity at dry weather flow B. Velocity of water at flushing C. Velocity at which no accumulation remains in the drains D. Velocity of water in a pressure filter...
- For sewers, inverted siphon is provided for___________________?
- A. One pipe B. Two pipes C. Three pipes D. Four pipes...
- In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is_______________?
- A. D B. D /2 C. D/3 D. D/4...
- Before discharging the foul sewage into rivers, it is generally treated by_____________________?
- A. Screening B. Sedimentation C. Oxidation D. All the above...
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