Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 2000 1000 100 5 2000 1000 100 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is Neutralised by alkali treatment None of these Left as such without any treatment Diluted with fresh water to reduce its acidity Neutralised by alkali treatment None of these Left as such without any treatment Diluted with fresh water to reduce its acidity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutant present in automobile exhaust is CO₂ CO Hydrocarbons NO CO₂ CO Hydrocarbons NO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of iron and manganese in water causes None of these Reduction in its dissolved oxygen content Temporary hardness Discoloration of bathroom fixtures None of these Reduction in its dissolved oxygen content Temporary hardness Discoloration of bathroom fixtures ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ bacteria in water causes disease like typhoid. Pathogenic Aerobic Anaerobic Non-pathogenic Pathogenic Aerobic Anaerobic Non-pathogenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of Ozone and iodine Ultraviolet light for irradiation of water All of these Chlorine or its compounds Ozone and iodine Ultraviolet light for irradiation of water All of these Chlorine or its compounds ANSWER DOWNLOAD EXAMIANS APP
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