Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 2000 50 5000 5 2000 50 5000 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 1000 100 2000 5 1000 100 2000 5 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 Aerobic oxidation Both A & B Neither A nor B Using the activities of bacteria and other micro organisms Aerobic oxidation Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the Biological oxygen demand (BOD) Oxygen ion concentration Relative stability Bacterial stability factor Biological oxygen demand (BOD) Oxygen ion concentration Relative stability Bacterial stability factor ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main type of sludge gas evolved during sewage treatment in Imhoff tank is H₂ CO CO₂ CH₄ H₂ CO CO₂ CH₄ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The per capital consumption of a locality is affected by(i) Climatic conditions(ii) Quality of water(iii) Distribution pressure Both (i) and (ii) All (i), (ii) and (iii) Both (i) and (iii) Only (i) Both (i) and (ii) All (i), (ii) and (iii) Both (i) and (iii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
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