Environmental Engineering in CE World's worst radioactive pollution was caused by nuclear reactor disaster which occured in Moscow (U.S.S.R.) Pensylvania (U.S.A.) Arizona (U.S.A.) Chernobyl (undivided U.S.S.R.) Moscow (U.S.S.R.) Pensylvania (U.S.A.) Arizona (U.S.A.) Chernobyl (undivided U.S.S.R.) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Irradiation of water by ultraviolet light Coagulation Cation exchanger Chlorine Irradiation of water by ultraviolet light Coagulation Cation exchanger Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 2000 5 100 1000 2000 5 100 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The disinfection efficiency of chlorine increases by(i) Decreasing the time of contact(ii) Decreasing the temperature of water(iii) Increasing the temperature of water Only (iii) Both (i) and (iii) Both (i) and (ii) Only (i) Only (iii) Both (i) and (iii) Both (i) and (ii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ bacteria in water causes disease like typhoid. Pathogenic Anaerobic Aerobic Non-pathogenic Pathogenic Anaerobic Aerobic Non-pathogenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas? Gravity settling chamber Hydrocyclone Electrostatic precipitator Packed scrubber Gravity settling chamber Hydrocyclone Electrostatic precipitator Packed scrubber ANSWER DOWNLOAD EXAMIANS APP
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