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+// A Textbook of Fluid Mecahnics and Hydraulic Machines - By R K Bansal
+// Chapter 1-Properties of Fluid
+// Problem 1.17
+
+
+//Given Data Set in the Problem(SI Units)
+d=15/100
+d_outer=15.10/100
+l=25/100
+T=12
+N=100
+
+
+//Calculations 
+u_tang=%pi*d*N/60
+Area_surface=%pi*d*l
+du=u_tang-0
+dy=(d_outer-d)/2
+        //We know, Shear stress=Force/Area=viscosity*(Velocity Gradient)
+        //also, Torque=Force*Diameter/2.......or.. Force=(Torque*2)/Diameter
+         //hence,  2*Torque/(diameter*area)=Viscosity*(Vel. gradient)
+visc=2*T/(d*Area_surface*du/dy)
+mprintf("The Viscosity of the  liquid is %f poise",visc*10)