[Marker for question 1]Treasure Island, today a suburban community, was originally created for the 1939 World’s [Marker for question 2]Fair. The World’s Fair was a celebration of international culture and technology. In the midst of the economic uncertainties of the Great Depression, Treasure Island and its accompanying fair offered a glimpse of optimism and provided San Francisco a platform from which to showcase its latest innovations.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)