Environmental Engineering in CE __________ is the process of killing organism in water. Sterilisation Disinfection Sedimentation Coagulation Sterilisation Disinfection Sedimentation Coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 100 400 200 20 100 400 200 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ hardness is responsible for the temporary hardness in water. Sulphate Carbonate Choride Calcium Sulphate Carbonate Choride Calcium ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? Ammonia Acetylene Hydrogen Carbon monoxide Ammonia Acetylene Hydrogen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a weightless pollutant? Noise pollution SPM Radioactive rays Thermal pollution Noise pollution SPM Radioactive rays Thermal pollution ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a source of ozone emission in the atmosphere? High voltage electrical equipments Refrigerators Dermatological photo-therapy equipments Xerox machines High voltage electrical equipments Refrigerators Dermatological photo-therapy equipments Xerox machines ANSWER DOWNLOAD EXAMIANS APP
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