Irrotational flow occurs when:

1.	Irrotational flow occurs when:
A.	Flow takes place in a duct of uniform cross- section at constant mass flow rate
B.	Streamlines are curved
C.	There is no net rotation of the fluid element about its mass center.
D.	Fluid element does not undergo any change in size or shape.
Answer» D. Fluid element does not undergo any change in size or shape.

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Irrotational flow occurs when:

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