Civil Engineering MCQAE Level Civil Engineering
A small residual chlorine in treated water distribution is maintained mainly to:
Environmental EngineeringChlorine ResidualEASY
Choose the correct answer
A
Protect against later microbial contamination
B
Increase permanent hardness
C
Raise turbidity deliberately
D
Remove all dissolved salts
Correct Answer
A. Protect against later microbial contamination
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Residual chlorine provides continuing disinfection protection in the distribution network.
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This MCQ belongs to Free Demo Test — AE Level (10 Questions). Full tests include timed attempts, rank comparison and subject-wise analysis.