Environmental Engineering in CE Photochemical smog is formed from automobile exhaust Appears only on sunny days All of these Is harmful for crops and trees also besides causing eye irritation & asthma By reaction of hydrocarbon & nitric oxide in presence of sunlight Appears only on sunny days All of these Is harmful for crops and trees also besides causing eye irritation & asthma By reaction of hydrocarbon & nitric oxide in presence of sunlight ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. 500 10000 5 1000 500 10000 5 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as Peroxy acetyl nitrate (PAN) or methyl nitrile Poly acrylonitrile Benzopyrene Photochemical smog Peroxy acetyl nitrate (PAN) or methyl nitrile Poly acrylonitrile Benzopyrene Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? Carbon monoxide Ammonia Hydrogen Acetylene Carbon monoxide Ammonia Hydrogen Acetylene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by Lagoons Biological oxygen pond Filtration Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Lagoons Biological oxygen pond Filtration Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Its silica content Caustic embrittlement Foaming from boilers Its dissolved oxygen content Its silica content Caustic embrittlement Foaming from boilers Its dissolved oxygen content ANSWER DOWNLOAD EXAMIANS APP
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