Environmental Engineering in CE The pH value of oxidised sewage is about 7.3 6.2 1.8 13.4 7.3 6.2 1.8 13.4 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 Mufflers (silencers) Accoustical absorbent None of these Lagging of noisy duct Mufflers (silencers) Accoustical absorbent None of these 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 All of these Conversion of NOx into N₂ and NH₃ in the first compartment Conversion of CO into CO₂ in the second compartment Oxidation of unburnt hydrocarbon fuel in the second compartment All of these Conversion of NOx into N₂ and NH₃ in the first compartment Conversion of CO into CO₂ in the second compartment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is maximum (about 500 ppm). Toluene Acetaldehyde Carbon disulphide Carbon dioxide Toluene Acetaldehyde Carbon disulphide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oil and grease present in an emulsified state in waste water discharged from industries can be removed by Biological oxidation Skimming off Settling out using chemical reagents Chlorination Biological oxidation Skimming off Settling out using chemical reagents Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels. 3 100 70 30 3 100 70 30 ANSWER DOWNLOAD EXAMIANS APP
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