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  1. If your model is not sufficiently constrained, you'll get a solver pivot error since the algebraic equations generated will not have a unique solution. What are the displacement and rotation constraints that need to be applied in your ANSYS model so that you don't get the solver pivot error? 
  2. What is the total no. of degrees of freedom that ANSYS puts in for the four-element mesh?
  3. Bending moment: Trend from A to B
    a. Do you expect linear, quadratic or cubic variation?
    b. Does the ANSYS solution within each element show this trend? Why or why not?

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