Environmental Engineering in CE Smoke is produced due to Insufficient supply of combustion air and insufficient time for combustion All of these Poor design & overloading of furnace Poor quality of fuel and improper mixing of fuel & combustion air Insufficient supply of combustion air and insufficient time for combustion All of these Poor design & overloading of furnace Poor quality of fuel and improper mixing of fuel & combustion air ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main type of sludge gas evolved during sewage treatment in Imhoff tank is CO₂ CO H₂ CH₄ CO₂ CO H₂ CH₄ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water. Total solids Turbidity All of these Color (Hazen) Total solids Turbidity All of these Color (Hazen) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a manmade source of air pollution? Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of CO₂ in atmosphere Reflects and absorbs the longer wavelength (infra-red) radiations All of these Prevents solar heat being radiated out completely, resulting in Allows visible solar radiation (ultraviolet) of short wave-length to pass through Reflects and absorbs the longer wavelength (infra-red) radiations All of these Prevents solar heat being radiated out completely, resulting in Allows visible solar radiation (ultraviolet) of short wave-length to pass through ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances. Radioactive None of these Organic Inorganic Radioactive None of these Organic Inorganic ANSWER DOWNLOAD EXAMIANS APP
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