Viscosity (1.)Essential property of good lubricant (a)High viscosity (b)High surface tension (c)High density (d)none of them. (2.)The flow rate of water become high from a hole in the tank if hole is: (a)near the bottom (b)near the top surface (c)in mid (d)does not depend on the position of the of hole. (3.)A hole is placed near the bottom of the tank. Volume of water flowing from the hole per sec does not depend on. (a)Area of hole (b) heig