Civil Engineering MCQJE Level Civil Engineering
A rotating biological contactor treats sewage by biomass attached to:
Environmental EngineeringEnvironmental EngineeringHARD
Choose the correct answer
A
Slowly rotating discs
B
Lime sludge blanket
C
Chlorine cylinders
D
Rapid sand grains only
Correct Answer
A. Slowly rotating discs
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Alternately submerged discs support aerobic attached growth.
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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.