Environmental Engineering in CE As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram) 800 10 90 750 800 10 90 750 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum CO₂ is emitted into the atmosphere by Combustion Biomass burning Urea Trees Combustion Biomass burning Urea Trees ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE COD of raw municipal sewage may be in the range of about __________ mg/litre. 1-2 5-10 90-120 1500-2500 1-2 5-10 90-120 1500-2500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of oxidised sewage is about 1.8 7.3 6.2 13.4 1.8 7.3 6.2 13.4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 400 200 100 20 400 200 100 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main industrial source of emission of hydrogen sulphide air pollutant is Petroleum refineries Coal based thermal power plants Pulp and paper plant Metallurgical roasting & smelting plant Petroleum refineries Coal based thermal power plants Pulp and paper plant Metallurgical roasting & smelting plant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS