Environmental Engineering in CE Which of the following is not a secondary air pollutant? Ozone Photochemical smog All of these Sulphur dioxide Ozone Photochemical smog All of these Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Asphyxiation Gastroentetitis Mathenoglobenemia Tooth decay Asphyxiation Gastroentetitis Mathenoglobenemia Tooth decay ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Persons working in cement plants and limestone quarries are more prone to disease like Cancer Asthma Flourosis (bone disease) Silicosis Cancer Asthma Flourosis (bone disease) Silicosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagoons used for purification of polluted water Use micro-organisms/bacteria in presence of dissolved oxygen All of these Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds 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 Use micro-organisms/bacteria in presence of dissolved oxygen All of these Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds 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 Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes Paralysis of muscles & loss of appetite Nervous depression Gastritis & diarrhea All of these Paralysis of muscles & loss of appetite Nervous depression Gastritis & diarrhea All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Green house effect is accentuated by All of these Deforestation Increased transportation activity Rapid industrialisation All of these Deforestation Increased transportation activity Rapid industrialisation ANSWER DOWNLOAD EXAMIANS APP