Related Questions

The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope
A 1 in 5
B 1 in 10
C 1 in 15
D 1 in 20
The sewage treatment in septic tanks is due to
A Anaerobic decomposition
B Aerobic decomposition
C Parasitic decomposition
D None of these
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
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
The pH value of fresh sewage is usually
A Equal to 7
B More than 7
C Less than 7
D Equal to zero
Fresh sewage is generally
A Alkaline
B Acidic
C Highly decomposed
D A source of objectionable odour

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