Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 100 20 200 400 100 20 200 400 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 3000 to 6000 10000 to 100000 6000 to 9000 1000 to 2000 3000 to 6000 10000 to 100000 6000 to 9000 1000 to 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called Fumes Smoke Aerosols Mists Fumes Smoke Aerosols Mists ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of excess flourine in water causes Dental cavity Respiratory disease Fluorosis Tooth decay Dental cavity Respiratory disease Fluorosis Tooth decay ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polluted water having low BOD are most economically treated in Sludge digester Sedimentation tanks Oxidation ponds Clarifier Sludge digester Sedimentation tanks Oxidation ponds Clarifier ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerosols present in atmospheric air may be Combination of all A, B & C Positively charged Neutral Negatively charged Combination of all A, B & C Positively charged Neutral Negatively charged ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS