Waste Water Engineering The recommended detention period for grit chambers is 1 minute 2 minutes 5 minutes 3 minutes 1 minute 2 minutes 5 minutes 3 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of bars for perforations in coarse screens used for the treatment of sewage, is 50 mm 40 mm 30 mm 20 mm 50 mm 40 mm 30 mm 20 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For large sewers, maximum distance between manholes may be 50 m 100 m 300 m 200 m 50 m 100 m 300 m 200 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of Methane gas Petrol vapours Carbondioxide gas Hydrogen sulphide gas Methane gas Petrol vapours Carbondioxide gas Hydrogen sulphide gas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Boussinesq’s equation for ascertaining unit pressure at a depth on sewers due to traffic loads, is pt = 3H3p/2 Z5 pt = 2H3p/3 Z5 pt = 2H3p/3 Z5 pt = 3H3p/2 Z5 pt = 3H3p/2 Z5 pt = 2H3p/3 Z5 pt = 2H3p/3 Z5 pt = 3H3p/2 Z5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is 1 in 503 upward 1 in 500 upward 1 in 100 upward 1 in 100 downward 1 in 503 upward 1 in 500 upward 1 in 100 upward 1 in 100 downward ANSWER DOWNLOAD EXAMIANS APP
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