21. The stream function in the 2-dimensional flow field is given by ? = x² – y². Find the magnitude of velocity at point (1, 1) is?
A. 2
B. 4
C. 8
D. 2v2
Read More- Theory of Machines: Simple Mechanisms-2
22. The center of pressure for an inclined surface area –
A. lies above the centroid of the surface
B. lies below the centroid of the surface
C. coincides with the centroid
D. None of these
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