Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Chlorine Cation exchanger Irradiation of water by ultraviolet light Coagulation Chlorine Cation exchanger Irradiation of water by ultraviolet light Coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE White smoke coming out of the chimney of a furnace indicates the use of Gaseous fuel in the furnace Liquid fuel in the furnace Very high excess air Low excess air Gaseous fuel in the furnace Liquid fuel in the furnace Very high excess air Low excess air ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The progressive warming up of the earth's surface is mainly due to the Blanketing effect of CO₂ in the atmosphere Automobile exhaust De-forestation Thickening of ozone layer Blanketing effect of CO₂ in the atmosphere Automobile exhaust De-forestation Thickening of ozone layer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Nitrogen dioxide Hydrogen flouride Hydrocarbons Hydrogen sulphides Nitrogen dioxide Hydrogen flouride Hydrocarbons Hydrogen sulphides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Active carbon Pulverised limestone Silica gel Bog iron (iron oxide) Active carbon Pulverised limestone Silica gel Bog iron (iron oxide) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. 95 120 140 75 95 120 140 75 ANSWER DOWNLOAD EXAMIANS APP
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