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This question belongs to Civil Engineering Environmental Engineering

Environmental Engineering

?

The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

A) 0.01 to 0.05 ppm B) 0.05 to 0.5 ppm C) 0.5 to 1.0 ppm D) 1.0 to 5.0 ppm

Answer & Solution

Correct Answer: Option B

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Question posted by Examveda

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Mir Imroz 5 years ago

The maximum permissible chlorine for public water supply should be between .1 to .2 PPM

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The amount of residual chlorine left in public water supply for...

The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

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