Which of these people is an engineer? A
someone who sells a new watch that can also make phone calls

B
someone who studies fossils to understand the Earth's natural history

C
someone who entertains audiences by making things seem to disappear

D
someone who uses knowledge of chemistry to solve a pollution problem in a town

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)