Environmental Engineering in CE Which of the following is not a source of ozone emission in the atmosphere? Xerox machines Dermatological photo-therapy equipments Refrigerators High voltage electrical equipments Xerox machines Dermatological photo-therapy equipments Refrigerators High voltage electrical equipments ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called Silicosis None of these Pneumoconiosis Bronchitis Silicosis None of these Pneumoconiosis Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 1000 5000 2000 50 1000 5000 2000 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fresh domestic sewage is __________ in color. Red Black Grey Dark brown Red Black Grey Dark brown ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following industries discharge mercury as a pollutant? Beverage plant Phosphoric acid plant Tanneries Chloro-alkali industry Beverage plant Phosphoric acid plant Tanneries Chloro-alkali industry ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most major constituents of air pollutants? Oxides of sulphur Oxides of nitrogen Carbon monoxide Hydrogen sulphide Oxides of sulphur Oxides of nitrogen Carbon monoxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
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