Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 100 ppm 50 ppm 300 ppm 700 ppm 100 ppm 50 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carbonaceous particles having size less than 1 μm are called Grit Smoke Aerosols Aggregates Grit Smoke Aerosols Aggregates 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 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 Ozone and iodine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 5000 2000 50 1000 5000 2000 50 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of bacteria in potable (drinking) water causes Disease Bad taste & colour Bad odour Turbidity Disease Bad taste & colour Bad odour Turbidity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur. 1000 500 50 3000 (i.e. 0.3%) 1000 500 50 3000 (i.e. 0.3%) ANSWER DOWNLOAD EXAMIANS APP