Environmental Engineering in CE Color test of water is done with an instrument called Electro-chemical cell Tintometer Turbidimeter Colorimeter Electro-chemical cell Tintometer Turbidimeter Colorimeter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Ferric chloride Alum (aluminium sulphate) Lime Sodium aluminate Ferric chloride Alum (aluminium sulphate) Lime Sodium aluminate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Lagging of noisy duct None of these Mufflers (silencers) Accoustical absorbent Lagging of noisy duct None of these Mufflers (silencers) Accoustical absorbent ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of CO₂ in atmosphere Allows visible solar radiation (ultraviolet) of short wave-length to pass through All of these Prevents solar heat being radiated out completely, resulting in Reflects and absorbs the longer wavelength (infra-red) radiations Allows visible solar radiation (ultraviolet) of short wave-length to pass through All of these Prevents solar heat being radiated out completely, resulting in Reflects and absorbs the longer wavelength (infra-red) radiations ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. 60 20 120 90 60 20 120 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Sulphur dioxide Ozone Photochemical smog All of these Sulphur dioxide Ozone Photochemical smog All of these ANSWER DOWNLOAD EXAMIANS APP
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