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