Environmental Engineering The phenolic compounds in public water supply should not be more than 0.1 ppm 0.0001 ppm 0.01 ppm 0.001 ppm 0.1 ppm 0.0001 ppm 0.01 ppm 0.001 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum discharge of a tube well is about 1000 liters/sec 5 liters/sec 50 liters/sec 500 liters/sec 1000 liters/sec 5 liters/sec 50 liters/sec 500 liters/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on Both depth and surface area of tank Surface area of tank None of these Depth of tank Both depth and surface area of tank Surface area of tank None of these Depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is Cast iron Reinforced cement concrete Steel Copper Cast iron Reinforced cement concrete Steel Copper ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Cleaning is done by (i) Scraping and removal in filters slow sand (ii) Back washing in slow sand filters (iii) Scraping and removal in filters rapid sand (iv) Back washing in rapid sand filters The correct answer is (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following compounds is widely used for algae control? Sodium sulphate Calcium chloride Copper sulphate Sodium chloride Sodium sulphate Calcium chloride Copper sulphate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
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