A. One pipe
B. Two pipes
C. Three pipes
D. Four pipes
Related Mcqs:
- For sewers, inverted siphon is provided for___________________?
A. One pipe
B. Two pipes
C. Three pipes
D. Four pipes - The drop man holes are generally provided in sewers for____________________?
A. Industrial areas
B. Large town ships
C. Hilly town ships
D. Cities in plains - In sewers designed with self cleansing velocity________________?
A. The bottom is silted
B. The bottom is scoured
C. Both silting and scouring occur at the bottom
D. Neither silting nor scouring occurs at the bottom - Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for__________________?
A. Unexpected large scale infiltration of stream water
B. Unexpected increase in the population
C. Under estimates of maximum and average flows
D. All of the above - The coagulant which is generally not used for treating the sewage, is__________________?
A. Alum
B. Ferric chloride
C. Ferric sulphate
D. Chlorinated copperas - The grit chambers of sewage treatment plants, are generally cleaned after__________________?
A. 2 days
B. 7 days
C. 12 days
D. 14 days - House connections to the laterals is generally made by___________________?
A. R.C.C.
B. P.C.C.
C. Cast iron
D. Glazed stonewares - Before discharging the foul sewage into rivers, it is generally treated by_____________________?
A. Screening
B. Sedimentation
C. Oxidation
D. All the above - Sewer ventilating columns are generally placed at_______________?
A. Distances 150 m to 300 m
B. Upper ends of branch sewers
C. Every change in the size of sewers
D. All the above - The discharge per unit plan area of a sedimentation tank, is generally called________________?
A. Over flow rate
B. Surface loading
C. Over flow velocity
D. All the above
