Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Aluminium Lead Arsenic Mercury Aluminium Lead Arsenic Mercury ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most of the bacteria in sewage are Saprophytic Anerobic None of these Parasitic Saprophytic Anerobic None of these Parasitic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Aggregates Smoke Powder Grit Aggregates Smoke Powder Grit ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant. Sulphur Fluorine Calcium Phosphorous Sulphur Fluorine Calcium Phosphorous 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? NOx CO CFC (chloro fluoro carbons) SO₂ NOx CO CFC (chloro fluoro carbons) SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. May increase or decrease ; depends on the chemical characteristics of polluted water Decreases Remains constant Increases May increase or decrease ; depends on the chemical characteristics of polluted water Decreases Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
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