Environmental Engineering in CE The function of skimming tank in sewage treatment is to remove __________ substances. Suspended solid Dissolved solid Oil & fatty Gritty & inorganic Suspended solid Dissolved solid Oil & fatty Gritty & inorganic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 43961 15-20 43832 25-30 43961 15-20 43832 25-30 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is the process of killing organism in water. Sedimentation Sterilisation Disinfection Coagulation Sedimentation Sterilisation Disinfection Coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagoons used for purification of polluted water Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds Use micro-organisms/bacteria in presence of dissolved oxygen All of these Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds Use micro-organisms/bacteria in presence of dissolved oxygen All of these Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Color test of water is done with an instrument called Colorimeter Tintometer Electro-chemical cell Turbidimeter Colorimeter Tintometer Electro-chemical cell Turbidimeter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The resistance of water to the passage of light through it is a measure of the Dissolved gases Color Turbidity Hardness Dissolved gases Color Turbidity Hardness ANSWER DOWNLOAD EXAMIANS APP
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