Environmental Engineering in CE Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes Foaming Turbidity Odour nuisances Undesirable plant growth Foaming Turbidity Odour nuisances Undesirable plant growth ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Biological oxidation ponds remove organic matters present in the polluted water by Using the activities of bacteria and other micro organisms Neither A nor B Aerobic oxidation Both A & B Using the activities of bacteria and other micro organisms Neither A nor B Aerobic oxidation Both A & B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of potable water should be between 6.5 to 8 4 to 5 1 to 1.5 13 to 14 6.5 to 8 4 to 5 1 to 1.5 13 to 14 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm. 100-200 100-1000 10-100 100-200 100-1000 10-100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE BOD of raw municipal sewage may be in the range of about __________ mg/litre. 5-10 150-300 2000-3000 1-2 5-10 150-300 2000-3000 1-2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of oxidised sewage is about 7.3 1.8 6.2 13.4 7.3 1.8 6.2 13.4 ANSWER DOWNLOAD EXAMIANS APP
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