Pick up the incorrect statement from the following ? – McqOptions

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1.	Pick up the incorrect statement from the following ?
A.	Septic tanks are horizontal continuous flow type of sedimentation tanks
B.	Septic tanks are generally provided a detention period of 12 to 36 hours
C.	Septic tanks are completely covered and high vent shafts are provided for the escape of foul gases
D.	None of these
Answer» E.

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