At the same mean velocity, the ratio of head loss per unit length for a sewer pipe flowing full to that for the same pipe flowing half full would be :

At the same mean velocity, the ratio of head loss per unit length for

1.	At the same mean velocity, the ratio of head loss per unit length for a sewer pipe flowing full to that for the same pipe flowing half full would be :
A.	2.0
B.	1.63
C.	1.00
D.	0.61
Answer» C. 1.00