Environmental Engineering in CE Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. 120 80 50 25 120 80 50 25 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The function of skimming tank in sewage treatment is to remove __________ substances. Dissolved solid Oil & fatty Gritty & inorganic Suspended solid Dissolved solid Oil & fatty Gritty & inorganic Suspended solid ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal In clarifiers By chemical coagulation In sedimentation tanks equipped with mechanical scrapper In vacuum filter In clarifiers By chemical coagulation In sedimentation tanks equipped with mechanical scrapper In vacuum filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is removed from water by lime-soda process. Temporary hardness Permanent hardness Foul smell and taste Iron and manganese Temporary hardness Permanent hardness Foul smell and taste Iron and manganese ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smog is A combination of smoke and fog Nothing but black smoke A solid particle e.g. flyash A liquid particle resulting from vapor condensation A combination of smoke and fog Nothing but black smoke A solid particle e.g. flyash A liquid particle resulting from vapor condensation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oil and grease present in an emulsified state in waste water discharged from industries can be removed by Skimming off Biological oxidation Settling out using chemical reagents Chlorination Skimming off Biological oxidation Settling out using chemical reagents Chlorination ANSWER DOWNLOAD EXAMIANS APP
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