*/*_The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is?

d¬¨‚â§ (0.011d + 0.785H)/Q

*/*_The detention time of a circular tank of diameter d and water dept

1.	/_The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is?
A.	d¬¨‚â§ (0.011d + 0.785H)/Q
B.	d (0.022d + 0.085H)/Q
C.	d (0.785d + 0.011H)/Q
D.	d (0.285d + 0.011H)/Q
Answer» B. d (0.022d + 0.085H)/Q