Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes Corrosion of building materials All of these Respiratory & lung disease Reduction in plant's productivity owing to acid rain Corrosion of building materials All of these Respiratory & lung disease Reduction in plant's productivity owing to acid rain ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. 90 180 150 120 90 180 150 120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million). 0.2 0.002 1.2 4.8 0.2 0.002 1.2 4.8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The most commonly used chemical coagulant in water treatment is Hydrazine Ferrous sulphate Lime Alum Hydrazine Ferrous sulphate Lime Alum ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrogen flouride Hydrogen sulphides Hydrocarbons Nitrogen dioxide Hydrogen flouride Hydrogen sulphides Hydrocarbons Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most of the atmospheric air pollutants are present in large quantity in Thermosphere Trophosphere Stratosphere Mesosphere Thermosphere Trophosphere Stratosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
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