Environmental Engineering in CE Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank (i) and (iii) (i) and (ii) Only (iii) Only (i) (i) and (iii) (i) and (ii) Only (iii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smog is A liquid particle resulting from vapor condensation Nothing but black smoke A combination of smoke and fog A solid particle e.g. flyash A liquid particle resulting from vapor condensation Nothing but black smoke A combination of smoke and fog A solid particle e.g. flyash ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerosols present in atmospheric air may be Combination of all A, B & C Positively charged Negatively charged Neutral Combination of all A, B & C Positively charged Negatively charged Neutral ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is removed from water by lime-soda process. Foul smell and taste Permanent hardness Iron and manganese Temporary hardness Foul smell and taste Permanent hardness Iron and manganese Temporary hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of iron and manganese in water causes Discoloration of bathroom fixtures None of these Temporary hardness Reduction in its dissolved oxygen content Discoloration of bathroom fixtures None of these Temporary hardness Reduction in its dissolved oxygen content ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 7 3 20 1 7 3 20 1 ANSWER DOWNLOAD EXAMIANS APP
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