Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 70 to 75% 0.85 65 to 70% 75 to 80% 70 to 75% 0.85 65 to 70% 75 to 80% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Methane Oxygen Carbon dioxide Hydrogen sulphide Methane Oxygen Carbon dioxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The water carried sewerage system removes Industrial sewage All listed here Domestic sewage Storm sewage Industrial sewage All listed here Domestic sewage Storm sewage ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for Unexpected increase in the population All of these Under estimates of maximum and average flows Unexpected large scale infiltration of stream water Unexpected increase in the population All of these Under estimates of maximum and average flows Unexpected large scale infiltration of stream water ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is D/2 D/4 D/3 D/1 D/2 D/4 D/3 D/1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is 1 hour and 30 minutes 2 hours 30 minutes 1 hour 1 hour and 30 minutes 2 hours 30 minutes 1 hour ANSWER DOWNLOAD EXAMIANS APP