Question

Normal dosage of chlorine in public water supply scheme ranges from __________ ppm.

a.

0.5 to 1

b.

10 to 15

c.

300 to 500

d.

1000 to 1500

Answer: (a).0.5 to 1

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Q. Normal dosage of chlorine in public water supply scheme ranges from __________ ppm.

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