Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 1 ppm 4 ppm 40 ppm 10 ppm 1 ppm 4 ppm 40 ppm 10 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Oxidation Dehydration Alkalinization Reduction Oxidation Dehydration Alkalinization Reduction ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of 1 mg/liter 1000 mg/liter 10 mg/liter 100 mg/liter 1 mg/liter 1000 mg/liter 10 mg/liter 100 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Generally the detention period for grit chambers is kept as 24 hours 5 minutes 1 minute 12 hours 24 hours 5 minutes 1 minute 12 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The polluted water is one which Is safe and suitable for drinking and domestic use Consists of undesirable substances rendering it unfit for drinking and domestic use Is contaminated Contains pathogenic bacteria Is safe and suitable for drinking and domestic use Consists of undesirable substances rendering it unfit for drinking and domestic use Is contaminated Contains pathogenic bacteria ANSWER DOWNLOAD EXAMIANS APP
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