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Operations Research
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Operations Research
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25 Questions

1. In facility planning - which capacity cushion strategy would be appropriate when the cost of stockouts far exceeds the cost of additional building - equipment and resources?

2. The process of translating a verbal statement of a problem into a mathematical statement called the mathematical model.

3. A solution that satisfies all the constraints simultaneously.

4. The improvement in the value of the optimal solution per unit increase in the right-hand side of a constraint.

5. The case in which more than one solution provides the optimal value for the objective function.

6. The firm produces exactly what is needed every month adjusting short term capacity through the use of overtime - part-time - temporary and contracted workers.

7. The expression that defines teh quantity to be maximized or minimized in a linear programming model.

8. A set of constraints that requires all variables to be nonnegative.

9. A linear program in which all of the constraints are written as equalities. The optimal solution is the same as the optimal solution of the original formulation of the linear program.

10. A variable subtracted from teh lef-hand side of a greater-than-or-equal-to constraint to convert the constraint into an equality. The value of this varible can usually be interpreted as the amount over and above some required minimum level.

11. A cost that is not affected by the decision made. It will be incurred no matter wha tvalues the decision variables assume.

12. The amount by whcih an objective function coefficient would have to improve (increase for a maximization problem - decrease for a minimization problem) before it would be possible for the corresponding variable to assume a positive value in the opti

13. The distribution channel is the ______________ part of the supply chain from manufacturer to consumer.

14. The set of all feasible solutions.

15. It requires that inventory be classified according to Annual dollar usage

16. A variable added to teh left-hand side of a less-than-or-equal-to constraint to convert teh constraint into an equality. The value of this variable can usually be interpreted as the amount of unused resource.

17. The study of how changes in teh coefficients of a linear pgoramming problem affect the optimal solution.

18. An equation or inequality that rules out certain combinations of decision variables as feasible solutions.

19. A controllable input for a linear programming model.

20. A mathematical model with a linear objective function - a set of linear constraints - and nonnegative variables.

21. A cost that depends upon the decision made. The amount will vary depending on the values of the decision variables.

22. Of the cost elements making up total inventory cost - which is the most difficult to estimate?

23. The situation in which no solution to the linear programming problem satisfies all of the constraints.

24. Graphically speaking - the feasible solution points occurring at the vertices or "corners" of the feasible region. With two-variable problems - they are determined by the intersection of the constraint lines.

25. It assumes that the facility decisions are made and cannot be easily changed over the next 6 to 18 months.

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