A pump is defined as device that（）<br>A:produces pressure<br>B:imparts energy to a fluid to move it from level ‘A’ to level ‘B’<br>C:creates a vacuum to move a liquid in all installation<br>D:is to develop a pressure differential

A pump is defined as device that（）
A:produces pressure
B:imparts energy to a fluid to move it from level ‘A’ to level ‘B’
C:creates a vacuum to move a liquid in all installation
D:is to develop a pressure differential

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