Environmental Engineering in CE Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace. Low amount of excess combustion air Large quantity of excess combustion air Pulverised coal as fuel Hydrocarbon fuel Low amount of excess combustion air Large quantity of excess combustion air Pulverised coal as fuel Hydrocarbon fuel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Photochemical smog is formed from automobile exhaust By reaction of hydrocarbon & nitric oxide in presence of sunlight Appears only on sunny days Is harmful for crops and trees also besides causing eye irritation & asthma All of these By reaction of hydrocarbon & nitric oxide in presence of sunlight Appears only on sunny days Is harmful for crops and trees also besides causing eye irritation & asthma All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The most commonly used chemical coagulant in water treatment is Lime Hydrazine Ferrous sulphate Alum Lime Hydrazine Ferrous sulphate Alum ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Both A & B Natural aeration of water stream Neither A nor B Photosynthetic action of algae Both A & B Natural aeration of water stream Neither A nor B Photosynthetic action of algae ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smog is not formed due to the presence of __________ in the atmosphere. SO₂ CO₂ NOx Any of these SO₂ CO₂ NOx Any of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Brown spots in fabrics will be caused by washing with water containing large amount of . Bromine Zinc Iodine Iron Bromine Zinc Iodine Iron ANSWER DOWNLOAD EXAMIANS APP
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