Environmental Engineering in CE __________ is removed from water by lime-soda process. Temporary hardness Foul smell and taste Permanent hardness Iron and manganese Temporary hardness Foul smell and taste Permanent hardness Iron and manganese ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Water filtration rate in a rapid sand filter ranges from __________ kilolitres/m²/hr. 0.1 to 1 3 to 6 15 to 20 10 to 15 0.1 to 1 3 to 6 15 to 20 10 to 15 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment plant, zeolite process is used to remove the __________ of water. Alkalinity Iron & zinc Hardness Acidity Alkalinity Iron & zinc Hardness Acidity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 5 500 50 1 5 500 50 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called Dust Smoke Powder Grit Dust Smoke Powder Grit ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 145 125 85 105 145 125 85 105 ANSWER DOWNLOAD EXAMIANS APP