The blades of a centrifugal impeller are said to be curved forward, if the ____________ of the motion of impeller blades?

Fluid Mechanics for Chemical 13/09/2021

A. Inlet tip of a blade curves in a direction opposite to that
B. Outlet tip of a blade curves in a direction opposite to that
C. Inlet tip of a blade is towards the direction
D. Outlet tip of a blade is towards the direction

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