Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Its silica content Foaming from boilers Caustic embrittlement Its dissolved oxygen content Its silica content Foaming from boilers Caustic embrittlement Its dissolved oxygen content ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Growth of __________ is promoted by the presence of manganese in water. Micro-organisms Algae Mosquitoes Files Micro-organisms Algae Mosquitoes Files 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 Benzopyrene Photochemical smog Poly acrylonitrile Peroxy acetyl nitrate (PAN) or methyl nitrile Benzopyrene Photochemical smog Poly acrylonitrile ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan Both A & B Neither A nor B With greater number of blades Of increased diameter Both A & B Neither A nor B With greater number of blades Of increased diameter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ionisation potential employed in the industrial electrostatic precipitator is of the order of 230 V DC 230 V AC 30 to 70 kV DC 30 to 70 kV AC 230 V DC 230 V AC 30 to 70 kV DC 30 to 70 kV AC ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Fermentation Oxidation Dehydration Reduction Fermentation Oxidation Dehydration Reduction ANSWER DOWNLOAD EXAMIANS APP
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