Environmental Engineering An egg shaped section of sewer Provides self cleansing velocity at low discharges Is easy to construct Is economical than circular section Is more stable than circular section Provides self cleansing velocity at low discharges Is easy to construct Is economical than circular section Is more stable than circular section ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is (i) Presumptive coli-form test (ii) Confirmed coli-form test (iii) Completed coli-form test Both (i) and (ii) Both (i) and (iii) All (i), (ii) and (iii) Only (i) Both (i) and (ii) Both (i) and (iii) All (i), (ii) and (iii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Hardy cross method of analysis of distribution system (i) Involves successive trials (ii) Takes economic aspects into account (iii) Is time consuming All are correct (i) and (ii) Only (i) (i) and (iii) All are correct (i) and (ii) Only (i) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about 0.5 to 1.0 ppm 0.05 to 0.5 ppm 1.0 to 5.0 ppm 0.01 to 0.05 ppm 0.5 to 1.0 ppm 0.05 to 0.5 ppm 1.0 to 5.0 ppm 0.01 to 0.05 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pathogens can be killed by Nitrification Oxidation None of these Chlorination Nitrification Oxidation None of these Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Dissolved oxygen in streams is Same throughout the day Maximum at midnight Maximum at noon Minimum at noon Same throughout the day Maximum at midnight Maximum at noon Minimum at noon ANSWER DOWNLOAD EXAMIANS APP
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