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 Copper Reinforced cement concrete Steel Cast iron Copper Reinforced cement concrete Steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Steeper than 1 in 20 Zero Given in the direction of natural slope of ground Given in the direction opposite to natural slope of ground Steeper than 1 in 20 Zero Given in the direction of natural slope of ground Given in the direction opposite to natural slope of ground ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of oxidation pond is that Large area is required for construction Maintenance and operation cost are high None of these BOD removal is very low Large area is required for construction Maintenance and operation cost are high None of these BOD removal is very low ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The phenolic compounds in public water supply should not be more than 0.0001 ppm 0.1 ppm 0.01 ppm 0.001 ppm 0.0001 ppm 0.1 ppm 0.01 ppm 0.001 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank increases if Particle size is decreased The surface area of tank is increased None of these The depth of tank is decreased Particle size is decreased The surface area of tank is increased None of these The depth of tank is decreased ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Dissolved organic substances Floating solids and dissolved inorganic solids Dissolved solids and dissolved gases Bacteria and colloidal solids Dissolved organic substances Floating solids and dissolved inorganic solids Dissolved solids and dissolved gases Bacteria and colloidal solids ANSWER DOWNLOAD EXAMIANS APP
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