Environmental Engineering in CE Presence of excess flourine in water causes Tooth decay Fluorosis Dental cavity Respiratory disease Tooth decay Fluorosis Dental cavity Respiratory disease ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, its sedimentation is speeded up by commonly adding Sodium sulphate Lime Hydrochloric acid Copper sulphate Sodium sulphate Lime Hydrochloric acid Copper sulphate 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. Potassium cyanide Coal ash None of these Ortho-xylene Potassium cyanide Coal ash None of these Ortho-xylene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 15-20 43961 25-30 43832 15-20 43961 25-30 43832 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in Food industry Iron & steel plant Municipal sewage treatment Petroleum refinery Food industry Iron & steel plant Municipal sewage treatment Petroleum refinery ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Arsenic Mercury Lead Aluminium Arsenic Mercury Lead Aluminium ANSWER DOWNLOAD EXAMIANS APP
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