Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Foaming from boilers Its dissolved oxygen content Caustic embrittlement Its silica content Foaming from boilers Its dissolved oxygen content Caustic embrittlement Its silica content ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Biological oxidation ponds remove organic matters present in the polluted water by Using the activities of bacteria and other micro organisms Neither A nor B Aerobic oxidation Both A & B Using the activities of bacteria and other micro organisms Neither A nor B Aerobic oxidation Both A & B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes Irritation in eyes All of these Respiratory trouble Poor visibility due to sky darkening Irritation in eyes All of these Respiratory trouble Poor visibility due to sky darkening ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? Biological oxidation pond Activated carbon adsorption Chemical coagulation Lagooning Biological oxidation pond Activated carbon adsorption Chemical coagulation Lagooning ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ is accomplished by aeration of water. Dissolved gases Suspended solids Dissolved solids None of these Dissolved gases Suspended solids Dissolved solids None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO₂ in air is __________ ppm. 5 2000 1000 500 5 2000 1000 500 ANSWER DOWNLOAD EXAMIANS APP
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