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B.E. (Env.), Sem.- VIII
a) TDS removal b) Settling of sludge c) Oxygen transfer d) TSS removal Answer c) Oxygen transfer 62 The O&G can be present in ----- form a) Free or emulsified b) Free and floating c) Free and dissolved d) Dispersed and dissolved Answer a) Free or emulsified 63 Abbreviated form of API is a) American Petroleum Institute
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