79) A flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called turbulent flow.

80) A flow in which the viscosity of fluid is dominating over the inertia force is called

81) An air vessel is provided at the summit in a syphon to

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.