Waste Water Engineering The spacing of bars for perforations in coarse screens used for the treatment of sewage, is 30 mm 20 mm 40 mm 50 mm 30 mm 20 mm 40 mm 50 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For large sewers, maximum distance between manholes may be 100 m 200 m 300 m 50 m 100 m 200 m 300 m 50 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Drop manholes are the manholes Without entry ladders Without manhole covers Having drains at different levels With depths more than 3.5 m Without entry ladders Without manhole covers Having drains at different levels With depths more than 3.5 m 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 Hydrogen sulphide Carbon dioxide Methane Oxygen Hydrogen sulphide Carbon dioxide Methane Oxygen 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)d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Anaerobic bacteria Both types of bacterias None of these Aerobic bacteria Anaerobic bacteria Both types of bacterias None of these Aerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
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