Q
Which one of the following statements regarding septic tanks is wrong ?
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A
A. A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided
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B
B. The outlet invert level is kept 5 to 7.5 cm below the inlet invert level
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C
C. The minimum width of septic level is 90 cm
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D
D. The depth of tank is kept equal to its width
Correct Answer:
D. D. The depth of tank is kept equal to its width
