Civil Engineering MCQAE Level Civil Engineering
Laboratory results show 10 mg/l of chlorine is needed for break-point chlorination of a water sample. To maintain 0.4 mg/l free chlorine residual, the chlorine requirement (in kg/d) for a flow rate of 2.0 MLD is
Environmental EngineeringEnvironmental EngineeringMEDIUM
Choose the correct answer
A
2.08
B
20.8
C
0.208
D
8.0
Correct Answer
B. 20.8
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Chlorine required = 10.4 mg/L x 2 MLD = 20.8 kg/day.
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.