A compound pipeline consists of two pieces of identical pipes. The equivalent length of same diameter and same friction factor, for the compound pipeline is L1 when pipes are connected in series, and is L2 when connected is parallel. What is the ratio of equivalent lengths L1 to L2?

A compound pipeline consists of two pieces of identical pipes. The equ

1.	A compound pipeline consists of two pieces of identical pipes. The equivalent length of same diameter and same friction factor, for the compound pipeline is L1 when pipes are connected in series, and is L2 when connected is parallel. What is the ratio of equivalent lengths L1 to L2?
A.	32 : 1
B.	8 : 1
C.	2 : 1
D.	√2 : 1
Answer» C. 2 : 1

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A compound pipeline consists of two pieces of identical pipes. The equivalent length of same diameter and same friction factor, for the compound pipeline is L1 when pipes are connected in series, and is L2 when connected is parallel. What is the ratio of equivalent lengths L1 to L2?

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