Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Oxidation Lagoon Imhoff tank Skimming tank Oxidation Lagoon Imhoff tank Skimming tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level inside a jet air liner in normal flight is about __________ decibels. 80 100 125 145 80 100 125 145 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes Fading of dyes on textiles Corrosion, tarnishing & soiling of metals Reduced strength of textiles All of these Fading of dyes on textiles Corrosion, tarnishing & soiling of metals Reduced strength of textiles All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N₂ in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent. 88 92 84 80 88 92 84 80 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ethanolamine is an absorbant used for the removal of __________ from air/gas. H₂S HF SO₂ Both B & C H₂S HF SO₂ Both B & C 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 3000 to 6000 10000 to 100000 1000 to 2000 6000 to 9000 3000 to 6000 10000 to 100000 1000 to 2000 ANSWER DOWNLOAD EXAMIANS APP
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