Environmental Engineering in CE Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. 120 95 140 75 120 95 140 75 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Neither A nor B Photosynthetic action of algae Natural aeration of water stream Both A & B Neither A nor B Photosynthetic action of algae Natural aeration of water stream Both A & B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for Oxidation of unburnt hydrocarbon fuel in the second compartment Conversion of CO into CO₂ in the second compartment All of these Conversion of NOx into N₂ and NH₃ in the first compartment Oxidation of unburnt hydrocarbon fuel in the second compartment Conversion of CO into CO₂ in the second compartment All of these Conversion of NOx into N₂ and NH₃ in the first compartment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Mathenoglobenemia Tooth decay Gastroentetitis Asphyxiation Mathenoglobenemia Tooth decay Gastroentetitis Asphyxiation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Roentgen Hertz None of these Decibel Roentgen Hertz None of these Decibel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 6000 to 9000 10000 to 100000 1000 to 2000 3000 to 6000 6000 to 9000 10000 to 100000 1000 to 2000 3000 to 6000 ANSWER DOWNLOAD EXAMIANS APP
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