Related Questions

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
Dilution method of disposing of sewage, is not preferred to
A When sewage is fresh
B When diluting water has high dissolved oxygen content
C When diluting water is used for water supply near the point of sewage disposed
D When the diluting water is having flow currents
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
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
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
A nuisance is experienced in diluting water if dilution factor is less than
A 100
B 60
C 40
D 20
Sewage treatment units are designed for
A Maximum flow only
B Minimum flow only
C Average flow only
D Maximum and minimum flow
The biochemical treatment of sewage effluents is essentially a process of
A Oxidation
B Dehydration
C Reduction
D Alkalinization

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