Waste Water Engineering Maximum permissible velocity 1.5 m/sec, is adopted in drains With beds of rocks and gravels Both A. and B. Lined with stones Neither A. nor B. With beds of rocks and gravels Both A. and B. Lined with stones Neither A. nor B. ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In case of sewer lines Test for straightness is carried out with the help of a lamp and mirror Obstruction test is carried out with the help of smooth ball of diameter 13 mm All listed here Water test is carried out to check water tightness of the joints Test for straightness is carried out with the help of a lamp and mirror Obstruction test is carried out with the help of smooth ball of diameter 13 mm All listed here Water test is carried out to check water tightness of the joints ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Reciprocating pump Air pressure pump Centrifugal pump Pneumatic ejector Reciprocating pump Air pressure pump Centrifugal pump Pneumatic ejector ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is 1.59 m 1.69 m 1.39 m 1.49 m 1.59 m 1.69 m 1.39 m 1.49 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage is pumped up From flat areas From basements All listed here From low lying areas From flat areas From basements All listed here From low lying areas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] ANSWER DOWNLOAD EXAMIANS APP