Related Questions

The spacing of bars for perforations in coarse screens used for the treatment of sewage, is
A 20 mm
B 30 mm
C 40 mm
D 50 mm
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
The spacing of bars of perforations of fine screens used for the treatment of sewage, is
A 2 to 3 mm
B 3 to 5 mm
C 5 to 8 mm
D 8 to 10 mm
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
Disposal to sewage in large cities, is done in
A Irrigation
B Dilution
C Oxidation
D Purification
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

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