Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 60 105 120 90 60 105 120 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C.) t = 15 - 0.0035h t = 15 - 0.0065h t = 0.0035h -15 t = 15 + 0.0065h t = 15 - 0.0035h t = 15 - 0.0065h t = 0.0035h -15 t = 15 + 0.0065h ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Parasitic Saphrophytic Aerobic Anaerobic Parasitic Saphrophytic Aerobic Anaerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called Fumes Mists Aerosols Smoke Fumes Mists Aerosols Smoke ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Composting Biological oxidation None of these Incineration Composting Biological oxidation None of these Incineration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The Killer gas which caused Bhopal gas tragedy in 1984 was Phosgene Carbon monoxide Sulphur dioxide Methyl iso-cynate (MIC) Phosgene Carbon monoxide Sulphur dioxide Methyl iso-cynate (MIC) ANSWER DOWNLOAD EXAMIANS APP
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