82) If a body floating in a liquid does not return back to its original position, and heels farther "away when given a small angular displacement, the body is said to be in neutral equilibrium.

83) The length of the divergent cone in a venturimeter is __________ that of the convergent cone.

84) A flow through a long pipe at constant rate is called

85) The volume per unit mass of a liquid is called specific volume.

86) In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water.