Environmental Engineering in CE Most of the bacteria in sewage are Saprophytic Anerobic None of these Parasitic Saprophytic Anerobic None of these Parasitic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of oxidised sewage is about 6.2 13.4 1.8 7.3 6.2 13.4 1.8 7.3 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 1 to 2 9 to 10 15 to 20 4 to 5 1 to 2 9 to 10 15 to 20 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes Explosion hazards Persistent foam Fire hazards Depletion of dissolved oxygen Explosion hazards Persistent foam Fire hazards Depletion of dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smog is not formed due to the presence of __________ in the atmosphere. SO₂ Any of these CO₂ NOx SO₂ Any of these CO₂ NOx ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. Coal ash Potassium cyanide None of these Ortho-xylene Coal ash Potassium cyanide None of these Ortho-xylene ANSWER DOWNLOAD EXAMIANS APP
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