Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/hour 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/hour ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pathogens can be killed by Nitrification Chlorination None of these Oxidation Nitrification Chlorination None of these Oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Dissolved solids and dissolved gases Dissolved organic substances Bacteria and colloidal solids Floating solids and dissolved inorganic solids Dissolved solids and dissolved gases Dissolved organic substances Bacteria and colloidal solids Floating solids and dissolved inorganic solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of BOD exerted at any time is Directly proportional to BOD satisfied Directly proportional to BOD remaining Inversely proportional to BOD satisfied Inversely proportional to BOD remaining Directly proportional to BOD satisfied Directly proportional to BOD remaining Inversely proportional to BOD satisfied Inversely proportional to BOD remaining ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The treatment of water with bleaching powder is known as Super chlorination Pre-chlorination Hypo-chlorination De-chlorination Super chlorination Pre-chlorination Hypo-chlorination De-chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Settling velocity increases with Temperature of liquid Specific gravity of solid particles Size of particles Depth of tank Temperature of liquid Specific gravity of solid particles Size of particles Depth of tank ANSWER DOWNLOAD EXAMIANS APP
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