Environmental Engineering in CE The resistance of water to the passage of light through it is a measure of the Color Hardness Dissolved gases Turbidity Color Hardness Dissolved gases Turbidity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 50 ppm 700 ppm 100 ppm 300 ppm 50 ppm 700 ppm 100 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Roentgen None of these Hertz Decibel Roentgen None of these Hertz Decibel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal In vacuum filter By chemical coagulation In sedimentation tanks equipped with mechanical scrapper In clarifiers In vacuum filter By chemical coagulation In sedimentation tanks equipped with mechanical scrapper In clarifiers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Biological oxidation ponds remove organic matters present in the polluted water by Both A & B Aerobic oxidation Using the activities of bacteria and other micro organisms Neither A nor B Both A & B Aerobic oxidation Using the activities of bacteria and other micro organisms Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Corrosion in boilers can be prevented by Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion All of these Deaeration of feed water Enhancing pH of feed water by adding alkali Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion All of these Deaeration of feed water Enhancing pH of feed water by adding alkali ANSWER DOWNLOAD EXAMIANS APP