Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. 160 185 135 105 160 185 135 105 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Phenolic water generated in coke ovens & by-product plant of a steel plant are disposed off by Quenching of hot coke Discharging in the river stream Filtration and recycling for cooling coke oven gas None of these Quenching of hot coke Discharging in the river stream Filtration and recycling for cooling coke oven gas None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the Relative stability Bacterial stability factor Biological oxygen demand (BOD) Oxygen ion concentration Relative stability Bacterial stability factor Biological oxygen demand (BOD) Oxygen ion concentration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a source of ozone emission in the atmosphere? Refrigerators Xerox machines Dermatological photo-therapy equipments High voltage electrical equipments Refrigerators Xerox machines Dermatological photo-therapy equipments High voltage electrical equipments ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Asphyxiation Cancer Corrosion Bronchitis Asphyxiation Cancer Corrosion Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of oxidised sewage is about 7.3 1.8 13.4 6.2 7.3 1.8 13.4 6.2 ANSWER DOWNLOAD EXAMIANS APP
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