Environmental Engineering Septic tank is a (i) Settling tank (ii) Digestion tank (iii) Aeration tank Only (iii) Only (i) (i) and (ii) (i) and (iii) Only (iii) Only (i) (i) and (ii) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 15 - 28 years 28 - 30 years 5 - 10 years 15 - 20 years 15 - 28 years 28 - 30 years 5 - 10 years 15 - 20 years 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 1 ppm 40 ppm 10 ppm 4 ppm 1 ppm 40 ppm 10 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Air binding phenomena in rapid sand filters occur due to Mud ball formation Low temperature Excessive negative head Higher turbidity in the effluent Mud ball formation Low temperature Excessive negative head Higher turbidity in the effluent ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is Fluctuating Nil To increase it To decrease it Fluctuating Nil To increase it To decrease it ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Oxidation Alkalinization Reduction Dehydration Oxidation Alkalinization Reduction Dehydration ANSWER DOWNLOAD EXAMIANS APP
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