Waste Water Engineering A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of Hydrogen sulphide gas Carbondioxide gas Petrol vapours Methane gas Hydrogen sulphide gas Carbondioxide gas Petrol vapours Methane gas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes need be checked for None of these Both A and B Maximum flow Minimum flow None of these Both A and B Maximum flow Minimum flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Both types of bacterias None of these Anaerobic bacteria Aerobic bacteria Both types of bacterias None of these Anaerobic bacteria Aerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The effluent of a septic tank is Foul and contains dissolved and suspended solids Fit for discharge into any open drain None of these As good as that from a complete treatment Foul and contains dissolved and suspended solids Fit for discharge into any open drain None of these As good as that from a complete treatment ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is 208 cu.m 216 cu.m 212 cu.m 204 cu.m 208 cu.m 216 cu.m 212 cu.m 204 cu.m ANSWER DOWNLOAD EXAMIANS APP
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