For finding the skin- friction drag we need to only measure shear-str – McqOptions

MCQOPTIONS

1.	For finding the skin- friction drag we need to only measure shear-stress at the top or bottom surface.
A.	Always true
B.	Always false
C.	True for flat plate, which is a symmetric airfoil
D.	Depends on the Reynolds number
Answer» D. Depends on the Reynolds number

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