List-I

       List-II

A.  The type of vortex flow in which no external torque rotates the fluid mass

1.   The fall of liquid at the axis of rotation

B.   Flow of liquid inside the impeller of a centrifugal pump

2.   Free vortex flow

C.   Free surface of forced vortex flow

3.   Parabolic

D.  In forced vortex, the rise of liquid level at ends

4.   Forced vortex flow