Waste Water Engineering Which one of the following statements regarding septic tanks is wrong? A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The minimum width of septic level is 90 cm The depth of tank is kept equal to its width A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The minimum width of septic level is 90 cm The depth of tank is kept equal to its width ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The use of coarse screens for the disposal of sewage, may be dispensed with by Comminutor Shredder Both A and B Neither A nor B Comminutor Shredder Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The coagulant which is generally not used for treating the sewage, is Chlorinated coppers Alum Ferric sulphate Ferric chloride Chlorinated coppers Alum Ferric sulphate Ferric chloride ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A manhole is classified as shallow if its depth is between 0.5 to 0.7 m 0.9 to 1.20 m 0.7 to 0.9 m 0.4 to 0.5 m 0.5 to 0.7 m 0.9 to 1.20 m 0.7 to 0.9 m 0.4 to 0.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The intensity of rain is expressed in cm/day cm/minute cm/hour None of these cm/day cm/minute cm/hour None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering At the junction of sewers Top of smaller sewer is kept lower Top of larger sewer is kept lower Tops of both the sewers are at the same level None of these Top of smaller sewer is kept lower Top of larger sewer is kept lower Tops of both the sewers are at the same level None of these ANSWER DOWNLOAD EXAMIANS APP
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