Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is To increase it Nil To decrease it Fluctuating To increase it Nil To decrease it Fluctuating ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Corrosion in concrete sewers is caused by Nitrogen Septic conditions Dissolved oxygen Chlorine Nitrogen Septic conditions Dissolved oxygen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of BOD exerted at any time is 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 Directly proportional to BOD satisfied Directly proportional to BOD remaining ANSWER DOWNLOAD EXAMIANS APP
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 length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank) 8B B 4B 2B 8B B 4B 2B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following unit works in anaerobic conditions? Trickling filters Sludge digestion tank Sedimentation tank Activated sludge treatment Trickling filters Sludge digestion tank Sedimentation tank Activated sludge treatment ANSWER DOWNLOAD EXAMIANS APP
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