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 Removal of oil and grease from sewage, is known None of these Skimming Filtration Screening None of these Skimming Filtration Screening ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is D’ = 0.84 D D’ = 0.64 D D’ = 0.94 D D’ = 0.74 D D’ = 0.84 D D’ = 0.64 D D’ = 0.94 D D’ = 0.74 D ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers designed with self cleansing velocity, The bottom is silted Neither silting nor scouring occurs at the bottom The bottom is scoured Both silting and scouring occur at the bottom The bottom is silted Neither silting nor scouring occurs at the bottom The bottom is scoured Both silting and scouring occur at the bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.45 m/sec 0.35 m/sec 0.30 m/sec 0.40 m/sec 0.45 m/sec 0.35 m/sec 0.30 m/sec 0.40 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The liquid wastes from kitchens, bath rooms and wash basins, is not called None of these Sewage Sullage Liquid waste None of these Sewage Sullage Liquid waste ANSWER DOWNLOAD EXAMIANS APP
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