Waste Water Engineering For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed 1.5 2.5 2 3 1.5 2.5 2 3 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In case of sewer lines Water test is carried out to check water tightness of the joints Obstruction test is carried out with the help of smooth ball of diameter 13 mm Test for straightness is carried out with the help of a lamp and mirror All listed here Water test is carried out to check water tightness of the joints Obstruction test is carried out with the help of smooth ball of diameter 13 mm Test for straightness is carried out with the help of a lamp and mirror All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is [(100 + P2)/(100 – P1)] V1 [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P1)/(100 – P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P1)/(100 – P2)] V1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage treatment units in which anaerobic decomposition of organic matter is used, are called Sludge sedimentation tanks Trickling filters None of these Imhoff tanks Sludge sedimentation tanks Trickling filters None of these Imhoff tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time (t) of a settling tank, may be defined as the time required for The flow of sewage to fill the tank None of these A particle to travel from top surface to bottom sludge zone A particle to travel along its length The flow of sewage to fill the tank None of these A particle to travel from top surface to bottom sludge zone A particle to travel along its length ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering With self cleansing velocity in sewers Scouring occurs at bottom Both silting and scouring occur at bottom Neither silting nor scouring occurs at bottom Silting occurs at bottom Scouring occurs at bottom Both silting and scouring occur at bottom Neither silting nor scouring occurs at bottom Silting occurs at bottom ANSWER DOWNLOAD EXAMIANS APP
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