Environmental Engineering For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as 4.5 to 6.0 10.5 to 12.0 6.5 to 8.0 8.5 to 10.0 4.5 to 6.0 10.5 to 12.0 6.5 to 8.0 8.5 to 10.0 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is 10920 10100 9500 9800 10920 10100 9500 9800 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Ground water is usually free from Both suspended and dissolved impurities Dissolved impurities None of these Suspended impurities Both suspended and dissolved impurities Dissolved impurities None of these Suspended impurities ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering When there is no recirculation of sewage, then recirculation factor is 1 Infinity None of these 1 Infinity None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period in coagulation tanks is usually kept as 2 to 6 days 1 to 2 minutes 2 to 6 hours 30 to 45 minutes 2 to 6 days 1 to 2 minutes 2 to 6 hours 30 to 45 minutes ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The characteristics of fresh and septic sewage respectively are Acidic and alkaline Alkaline and acidic Both acidic Both alkaline Acidic and alkaline Alkaline and acidic Both acidic Both alkaline ANSWER DOWNLOAD EXAMIANS APP
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