Fresh sewage may become stale in_________________?
A. One hour
B. Two to three hours
C. Three to four hours
D. Six hours
A. One hour
B. Two to three hours
C. Three to four hours
D. Six hours
A. centroid of the displaced volume of fluid
B. center of pressure of displaced volume
C. e.g. of floating ‘body
D. does not exist
E. none of the above
A. A particle to travel along its length
B. A particle to travel from top surface to bottom sludge zone
C. The flow of sewage to fill the tank
D. None of these
A. Vs = 418 (Gs – Gw) d [(3T + 70)/100]
B. Vs = 418 (Gs – Gw)d² [(3T + 70)/100]
C. Vs = 218 (Gs – Gw)d² [(3T + 70)/100]
D. Vs = 218 (Gs – Gw)d [(3T + 70)/100]
A. Less than 0.01 mm
B. Less than 0.05 mm
C. Less than 0.1 mm
D. Greater than 0.1 mm
A. Venturimeter
B. Orifice plate
C. hot wire anemometer
D. rotameter
E. pitot tube
A. One pipe
B. Two pipes
C. Three pipes
D. Four pipes