Waste Water Engineering The most efficient cross-section of sewers in a combined sewerage system is Rectangular Parabolic Circular New egged Rectangular Parabolic Circular New egged ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To maintain aerobic biological activity, the moisture content of the compost mass should be about 0.6 0.5 0.55 0.45 0.6 0.5 0.55 0.45 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is All of these Hydrogen sulphide Carbondioxide Methane All of these Hydrogen sulphide Carbondioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 2 3 2.5 1.5 2 3 2.5 1.5 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 Carbon dioxide Oxygen Methane Hydrogen sulphide Carbon dioxide Oxygen Methane Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In normal conditions, the period for sludge digestion, is 10 days 20 days 60 days 30 days 10 days 20 days 60 days 30 days ANSWER DOWNLOAD EXAMIANS APP