Which of the following correctly identifies what is contained in the right-hand column of a morphological matrix? the current materials, as well as other design alternatives

the parameters for materials and designs that must remain consistent

the current method of achieving the design, as well as possible design changes and alternatives

the parameters for the engineer to change a single aspect of the design

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)