Environmental Engineering Which of the following retards the self purification of stream? Sunlight None of these Higher temperature Satisfying oxygen demand Sunlight None of these Higher temperature Satisfying oxygen demand ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The devices which are installed for drawing water from the sources are called Aquifers Filters Aquiclude Intakes Aquifers Filters Aquiclude Intakes ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pathogens can be killed by Chlorination None of these Nitrification Oxidation Chlorination None of these Nitrification Oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 4 ppm 40 ppm 10 ppm 1 ppm 4 ppm 40 ppm 10 ppm 1 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The polluted water is one which Consists of undesirable substances rendering it unfit for drinking and domestic use Is contaminated Is safe and suitable for drinking and domestic use Contains pathogenic bacteria Consists of undesirable substances rendering it unfit for drinking and domestic use Is contaminated Is safe and suitable for drinking and domestic use Contains pathogenic bacteria ANSWER DOWNLOAD EXAMIANS APP
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