Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Incineration Biological oxidation Composting None of these Incineration Biological oxidation Composting None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is maximum (about 500 ppm). Toluene Carbon disulphide Carbon dioxide Acetaldehyde Toluene Carbon disulphide Carbon dioxide Acetaldehyde ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 15 to 20 9 to 10 4 to 5 1 to 2 15 to 20 9 to 10 4 to 5 1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Lime Ferric chloride Alum (aluminium sulphate) Sodium aluminate Lime Ferric chloride Alum (aluminium sulphate) Sodium aluminate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The principal gas evolved from sludge digestion tank is CO CH₄ CO₂ N₂ CO CH₄ CO₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water. Total solids All of these Turbidity Color (Hazen) Total solids All of these Turbidity Color (Hazen) ANSWER DOWNLOAD EXAMIANS APP
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