Civil Engineering MCQJE Level Civil Engineering
In the activated sludge process, sludge age or mean cell residence time represents the average time for which:
Environmental EngineeringSludge AgeMEDIUM
Choose the correct answer
A
Microbial solids remain in the treatment system
B
Raw sewage stays in the screen chamber
C
Grit particles remain in the grit chamber
D
Chlorine remains in the contact tank only
Correct Answer
A. Microbial solids remain in the treatment system
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Sludge age (MCRT/SRT) is the average residence time of biomass solids in the activated sludge system.
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This MCQ belongs to SSC JE Civil Paper-I Technical Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.