Related Questions

Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is
A H2
B CH4
C CO2
D N2
A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called
A House sewer
B Lateral sewer
C Main sewer
D Sub-main sewer
The sewer pipe which carries sewage from a building for immediate disposal is
A House sewer
B Lateral sewer
C Intercepting sewer
D Main sewer
The use of coarse screens for the disposal of sewage, may be dispensed with by
A Comminutor
B Shredder
C Both A and B
D Neither A nor B
During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.
A Filtration
B Digestion
C Sedimentation
D Both B and C
Fine grit present in sewage is removed in the __________ during sewage treatment.
A Grit chamber
B Detritus tank
C Trickling filter
D Skimming tank
__________ substances present in sewage are removed in grit chamber during sewage treatment.
A Organic
B Fatty
C Inorganic
D Dissolved
Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?
A Centrifugal pump
B Pneumatic ejector
C Reciprocating pump
D None of these
Which of the following pumps is used to pump sewage solids with liquid sewage without clogging the pump is?
A Centrifugal pump
B Pneumatic ejector
C Reciprocating pump
D None of these
To prevent settling down of sewage both at the bottom and on the sides of a large sewer, self-cleaning velocity recommended for Indian conditions, is
A 0.50 m/sec
B 0.60 m/sec
C 0.70 m/sec
D 0.75 m/sec

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