Environmental Engineering in CE Water filtration rate in a slow sand filter ranges from __________ litres/m²/hr. 4000 to 5000 1500 to 2500 10 to 20 100 to 200 4000 to 5000 1500 to 2500 10 to 20 100 to 200 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 4 to 5 15 to 20 9 to 10 1 to 2 4 to 5 15 to 20 9 to 10 1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Caustic embrittlement Its dissolved oxygen content Its silica content Foaming from boilers Caustic embrittlement Its dissolved oxygen content Its silica content Foaming from boilers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank (i) and (iii) Only (i) Only (iii) (i) and (ii) (i) and (iii) Only (i) Only (iii) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate? SO₂ NOx CFC (chloro fluoro carbons) CO SO₂ NOx CFC (chloro fluoro carbons) CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dissolved oxygen content in river water is around __________ ppm. 5 100 250 500 5 100 250 500 ANSWER DOWNLOAD EXAMIANS APP
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