Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Lime Copper sulphate Sulphuric acid Sodium permanganate Lime Copper sulphate Sulphuric acid Sodium permanganate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on Surface area of tank Both depth and surface area of tank Depth of tank None of these Surface area of tank Both depth and surface area of tank Depth of tank None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank) B 4B 8B 2B B 4B 8B 2B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called House sewer Sub-main sewer Main sewer Lateral sewer House sewer Sub-main sewer Main sewer Lateral sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period for oxidation ponds is usually kept as 10 to 15 days 48 hours 3 months 24 hours 10 to 15 days 48 hours 3 months 24 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be 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 Steeper than 1 in 20 Zero ANSWER DOWNLOAD EXAMIANS APP
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