Environmental Engineering in CE For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. 5 10000 1000 500 5 10000 1000 500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most practical and economical method for removal of suspended solid matter from polluted water? Biological oxidation Chlorination Skimming off Sedimentation Biological oxidation Chlorination Skimming off Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a weightless pollutant? Noise pollution Thermal pollution Radioactive rays SPM Noise pollution Thermal pollution Radioactive rays SPM ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is maximum (about 500 ppm). Carbon dioxide Acetaldehyde Toluene Carbon disulphide Carbon dioxide Acetaldehyde Toluene Carbon disulphide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre. 1050 332 42 2 1050 332 42 2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Algae growth in water is controlled by Chlorination Deoxidation Aeration Bleaching Chlorination Deoxidation Aeration Bleaching ANSWER DOWNLOAD EXAMIANS APP
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