Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 24 to 36 hours 8 to 16 hours 16 to 24 hours 4 to 8 hours 24 to 36 hours 8 to 16 hours 16 to 24 hours 4 to 8 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In SI units the power of sound is represented in Joules Watts Kgs Newtons Joules Watts Kgs Newtons ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In the activated sludge process Sludge is activated by constant stirring Water is removed by centrifugal action Aeration is continued till stability Aeration is done with an admixture of previously aerated sludge Sludge is activated by constant stirring Water is removed by centrifugal action Aeration is continued till stability Aeration is done with an admixture of previously aerated sludge ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Reciprocating pump Centrifugal pump Pneumatic ejector Air pressure pump Reciprocating pump Centrifugal pump Pneumatic ejector Air pressure pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in Chezy’s formula Manning’s formula Kutter’s formula Bazin’s formula Chezy’s formula Manning’s formula Kutter’s formula Bazin’s formula ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS