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
Dried milk dried meat are examples of preservation by
A Pasteurization
B Dehydration
C Strerilization
D None of the above
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
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 grit chambers of sewage treatment plants, are generally cleaned after
A 2 days
B 7 days
C 12 days
D 14 days
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
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

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