Environmental Engineering Septic tank is a (i) Settling tank (ii) Digestion tank (iii) Aeration tank Only (iii) (i) and (iii) (i) and (ii) Only (i) Only (iii) (i) and (iii) (i) and (ii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The gas from sludge digestion tank is mainly composed of Hydrogen sulphide Nitrogen Methane Carbon dioxide Hydrogen sulphide Nitrogen Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to geometrical increase method of forecasting population, arithmetical increase method gives Higher value Lesser value Accurate value Same value Higher value Lesser value Accurate value Same value ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Period of cleaning of slow sand filters is about 1 - 2 year 10 - 12 days 2 - 3 months 24 - 48 hours 1 - 2 year 10 - 12 days 2 - 3 months 24 - 48 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 150 to 350 0 to 50 50 to 150 350 to 500 150 to 350 0 to 50 50 to 150 350 to 500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Double filtration is used All of these For isolated buildings like pools, hotels etc swimming To increase the filtration rapid sand filters capacity of To increase the filtration slow sand filters capacity of All of these For isolated buildings like pools, hotels etc swimming To increase the filtration rapid sand filters capacity of To increase the filtration slow sand filters capacity of ANSWER DOWNLOAD EXAMIANS APP
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