Environmental Engineering in CE Insufficient washing of sand grains in a rapid sand filter causes Mud balls Air binding Expansion of filtering media Shrinkage of filtering media Mud balls Air binding Expansion of filtering media Shrinkage of filtering media ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Sulphur dioxide Photochemical smog All of these Ozone Sulphur dioxide Photochemical smog All of these Ozone 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 Nā in contaminated air at which it acts as a natural asphyxant is ā„ __________ percent. 92 84 80 88 92 84 80 88 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Detritus tank Skimming tank Trickling filter Grit chamber Detritus tank Skimming tank Trickling filter Grit chamber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Aggregates Powder Grit Smoke Aggregates Powder Grit Smoke ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The resistance of water to the passage of light through it is a measure of the Hardness Dissolved gases Color Turbidity Hardness Dissolved gases Color Turbidity ANSWER DOWNLOAD EXAMIANS APP
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