Environmental Engineering in CE The most commonly used chemical coagulant in water treatment is Alum Ferrous sulphate Hydrazine Lime Alum Ferrous sulphate Hydrazine Lime ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The upper layer of atmosphere is called the Ionosphere Troposphere Stratosphere None of these Ionosphere Troposphere Stratosphere None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 50 1 5 500 50 1 5 500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a practical method of low level radioactive waste disposal? Disposing off in rivers & oceans Discharging to atmosphere through tall stacks after dilution Filling in steel crates and shooting it off out of earth Dilution with inert material Disposing off in rivers & oceans Discharging to atmosphere through tall stacks after dilution Filling in steel crates and shooting it off out of earth Dilution with inert material ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 5 2000 1000 100 5 2000 1000 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Lagoon Imhoff tank Oxidation Skimming tank Lagoon Imhoff tank Oxidation Skimming tank ANSWER DOWNLOAD EXAMIANS APP
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