Environmental Engineering in CE In a sedimentation tank, the detention period for water ranges from __________ hours. 24 to 32 16 to 20 8 to 12 2 to 4 24 to 32 16 to 20 8 to 12 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan With greater number of blades Neither A nor B Both A & B Of increased diameter With greater number of blades Neither A nor B Both A & B Of increased diameter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes All of these Nervous system disorder Blood poisoning Anaemia All of these Nervous system disorder Blood poisoning Anaemia 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 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)? Chemical coagulation Activated carbon adsorption Biological oxidation pond Lagooning Chemical coagulation Activated carbon adsorption Biological oxidation pond Lagooning ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. Hydrogen sulphide Asbestos Cadmium Mercury Hydrogen sulphide Asbestos Cadmium Mercury ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS