Environmental Engineering The detention period in coagulation tanks is usually kept as 2 to 6 hours 30 to 45 minutes 1 to 2 minutes 2 to 6 days 2 to 6 hours 30 to 45 minutes 1 to 2 minutes 2 to 6 days ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The characteristics of fresh and septic sewage respectively are Both acidic Alkaline and acidic Both alkaline Acidic and alkaline Both acidic Alkaline and acidic Both alkaline Acidic and alkaline ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Double filtration is used For isolated buildings like pools, hotels etc swimming All of these To increase the filtration rapid sand filters capacity of To increase the filtration slow sand filters capacity of For isolated buildings like pools, hotels etc swimming All of these To increase the filtration rapid sand filters capacity of To increase the filtration slow sand filters capacity of ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on None of these Both depth and surface area of tank Surface area of tank Depth of tank None of these Both depth and surface area of tank Surface area of tank Depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period for oxidation ponds is usually kept as 3 months 24 hours 10 to 15 days 48 hours 3 months 24 hours 10 to 15 days 48 hours 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 Copper Steel Cast iron Reinforced cement concrete Copper Steel Cast iron Reinforced cement concrete ANSWER DOWNLOAD EXAMIANS APP
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