Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Trickling filter Detritus tank Grit chamber Skimming tank Trickling filter Detritus tank Grit chamber Skimming tank 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 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 In clarifiers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The progressive warming up of the earth's surface is mainly due to the Automobile exhaust Blanketing effect of CO₂ in the atmosphere Thickening of ozone layer De-forestation Automobile exhaust Blanketing effect of CO₂ in the atmosphere Thickening of ozone layer De-forestation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following causes death by asphyxiation, if its presence in atmospheric air exceeds maximum allowable concentration (i.e. > 50 ppm)? Carbon monoxide Peroxyacyl nitrate Sulphur dioxide Benzopyrene Carbon monoxide Peroxyacyl nitrate Sulphur dioxide Benzopyrene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust by human being causes Asphyxiation Tuberculosis Both B & C Shortness of breath Asphyxiation Tuberculosis Both B & C Shortness of breath ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following dust collection equipments is the least efficient (for sub-micronic particles)? Cyclone separator Dust catcher (gravity type) Bag filter Hollow wet scrubber Cyclone separator Dust catcher (gravity type) Bag filter Hollow wet scrubber ANSWER DOWNLOAD EXAMIANS APP
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