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 depth of tank is kept equal to its width The minimum width of septic level is 90 cm The outlet invert level is kept 5 to 7.5 cm below the inlet invert level A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The depth of tank is kept equal to its width The minimum width of septic level is 90 cm The outlet invert level is kept 5 to 7.5 cm below the inlet invert level ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering At the junction of sewers Top of smaller sewer is kept lower None of these Top of larger sewer is kept lower Tops of both the sewers are at the same level Top of smaller sewer is kept lower None of these Top of larger sewer is kept lower Tops of both the sewers are at the same level ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Facultative bacteria survive in Both cases A and B The presence of oxygen The absence of oxygen Neither A nor B Both cases A and B The presence of oxygen The absence of oxygen Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of design discharge to the surface area of a sedimentation tank is called All of these Overflow velocity Surface loading Overflow rate All of these Overflow velocity Surface loading Overflow rate ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.1 0.05 0.5 0.25 0.1 0.05 0.5 0.25 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In SI units the power of sound is represented in Newtons Joules Kgs Watts Newtons Joules Kgs Watts ANSWER DOWNLOAD EXAMIANS APP
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