Environmental Engineering in CE The concentration of water vapour in troposphere, which depends upon the altitude & temperature varies in the range of zero to __________ percent. 8 1 4 12 8 1 4 12 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. Asbestos Mercury Cadmium Hydrogen sulphide Asbestos Mercury Cadmium Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by Trickling filters Aerated lagoons Gravity separator having oil skimming devices Biological oxygen pond Trickling filters Aerated lagoons Gravity separator having oil skimming devices Biological oxygen pond ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Smoke Powder Grit Aggregates Smoke Powder Grit Aggregates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Corrosion in boilers can be prevented by All of these Enhancing pH of feed water by adding alkali Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion All of these Enhancing pH of feed water by adding alkali Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion 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 Corrosion, tarnishing & soiling of metals All of these Reduced strength of textiles Fading of dyes on textiles Corrosion, tarnishing & soiling of metals All of these Reduced strength of textiles Fading of dyes on textiles ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS