In a two-dimensional flow, a stream line shall be interpreted as: – McqOptions

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1.	In a two-dimensional flow, a stream line shall be interpreted as:
A.	they are not contours of an impervious two-dimensional body
B.	flow is constant in the direction normal to the flow
C.	at the edge, velocity vector is normal to the flow
D.	a curve such that velocity vector is always tangential and there is no flow in the direction normal to it
Answer» E.

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