Water Supply and Sanitary

261) In a COD test the most common interference is caused by the ions of

Discuss in Comment

chlorides

262) Usual population equivalent of BOD is

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80 g/capita/day

263) the BOD equation is identified by………………where K is called

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deoxygenation constant

264) Second Phase BOD is exerted because of the oxidation of

Discuss in Comment

Ammonia to nitrates

265) A water borne disease is

Discuss in Comment

dysentery

266) A communicable disease is

Discuss in Comment

tuberculosis

267) Due to improper storing of water the following disease spreads

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filaria

268) A good source of water requiring practically the least treatment is

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an elevated lake

269) A river intake may be situated on

Discuss in Comment

a straight reach

270) Waters from the following source is likely to be hard

Discuss in Comment

deep well

Subject Notes

Objective Box

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