Waste Water Engineering Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter Greater than 0.1 mm Less than 0.1 mm Less than 0.01 mm Less than 0.05 mm Greater than 0.1 mm Less than 0.1 mm Less than 0.01 mm Less than 0.05 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Design period of 40 to 50 years is adopted for Main sewers Branch sewers All listed here Trunk sewers Main sewers Branch sewers All listed here Trunk sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is 2.45 m 2.40 m 2.30 m 2.50 m 2.45 m 2.40 m 2.30 m 2.50 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Both types of bacterias Anaerobic bacteria None of these Aerobic bacteria Both types of bacterias Anaerobic bacteria None of these Aerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is 5 m 6.5 m 7 m 5.5 m 5 m 6.5 m 7 m 5.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of 5 years 4 years 3.5 years 3 years 5 years 4 years 3.5 years 3 years ANSWER DOWNLOAD EXAMIANS APP