In which of the following cases, it is possible for flow to occur from low pressure to high pressure?

low of liquid upward in a vertical pipe

low through a converging section

mpossible in a constant cross-section conduit

In which of the following cases, it is possible for flow to occur from

1.	In which of the following cases, it is possible for flow to occur from low pressure to high pressure?
A.	low of liquid upward in a vertical pipe
B.	low through a converging section
C.	low of air downward in a pipe
D.	mpossible in a constant cross-section conduit
Answer» C. low of air downward in a pipe

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In which of the following cases, it is possible for flow to occur from low pressure to high pressure?

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