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Test your basic knowledge |
Operations Research
Start Test
Study First
Subject
:
business-skills
Instructions:
Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The situation in which the value of the solution may be made infinitely small in a minimization problem wtihout violating any of the constraints.
Unbounded
Problem Formulation
Constraint
Extreme Point
2. A constraint that does not affect teh feasible region. If a constraint is redundant - it can be removed from the problem without affecting the feasible region.
Aggregate Planning
Redundant Constraint
Dual Price
Slack Variable
3. 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.
Mathematical Model
Alternative optimal solution
Sunk Cost
Standard Form
4. 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.
Slack Variable
Objective Function
100 percent Rule
Stockout costs
5. 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.
Forward (or downstream)
Aggregate Planning
Extreme Point
Constraint
6. A set of constraints that requires all variables to be nonnegative.
Sensitivity analysis
Linear functions
Nonnegativity Constraints
100 percent Rule
7. The set of all feasible solutions.
Problem Formulation
Feasible Region
Constraint
Chase Strategy
8. A solution that satisfies all the constraints simultaneously.
Linear Program
Forward (or downstream)
Feasible Solution
Nonnegativity Constraints
9. A cost that is not affected by the decision made. It will be incurred no matter wha tvalues the decision variables assume.
Standard Form
Aggregate Planning
Surplus Variable
Sunk Cost
10. A cost that depends upon the decision made. The amount will vary depending on the values of the decision variables.
Objective Function
Nonnegativity Constraints
Relevant Cost
Slack Variable
11. A representation of a problem where teh objective and all constraint conditions are described by mathematical expressions.
Unbounded
Mathematical Model
Linear functions
Objective Function
12. It requires that inventory be classified according to Annual dollar usage
ABC analysis
Decision Variable
Extreme Point
Large Cushion
13. 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.
100 percent Rule
Unbounded
Stockout costs
Surplus Variable
14. Of the cost elements making up total inventory cost - which is the most difficult to estimate?
Surplus Variable
ABC analysis
Slack Variable
Stockout costs
15. A rule indicating when simultaneous change in two or more objection function coefficients will not cause a change in the optimal values for the decision variables. It can also be applied to indicate when two or more right-hand-side changes will not c
Slack Variable
Linear functions
Stockout costs
100 percent Rule
16. An equation or inequality that rules out certain combinations of decision variables as feasible solutions.
Chase Strategy
Redundant Constraint
Constraint
100 percent Rule
17. The study of how changes in teh coefficients of a linear pgoramming problem affect the optimal solution.
Feasible Solution
Dual Price
Sensitivity analysis
Surplus Variable
18. The situation in which no solution to the linear programming problem satisfies all of the constraints.
Objective Function
Infeasibility
Unbounded
Forward (or downstream)
19. The case in which more than one solution provides the optimal value for the objective function.
ABC analysis
Slack Variable
Feasible Solution
Alternative optimal solution
20. The distribution channel is the ______________ part of the supply chain from manufacturer to consumer.
Forward (or downstream)
Alternative optimal solution
Dual Price
Redundant Constraint
21. A mathematical model with a linear objective function - a set of linear constraints - and nonnegative variables.
Large Cushion
Standard Form
Linear Program
Decision Variable
22. Mathematical expressions in which the variables appear in separate terms and are raised to the first power.
Linear functions
Mathematical Model
Redundant Constraint
Problem Formulation
23. The expression that defines teh quantity to be maximized or minimized in a linear programming model.
Infeasibility
Nonnegativity Constraints
Objective Function
Extreme Point
24. 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
Relevant Cost
Sunk Cost
Reduced Cost
Mathematical Model
25. 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?
Relevant Cost
Problem Formulation
Large Cushion
ABC analysis
26. A controllable input for a linear programming model.
Constraint
ABC analysis
Forward (or downstream)
Decision Variable
27. The firm produces exactly what is needed every month adjusting short term capacity through the use of overtime - part-time - temporary and contracted workers.
Alternative optimal solution
Relevant Cost
Chase Strategy
Linear functions
28. One option for altering the pattern of demand which impacts aggregate planning is...
Forward (or downstream)
Product Pricing
Problem Formulation
Reduced Cost
29. It assumes that the facility decisions are made and cannot be easily changed over the next 6 to 18 months.
Decision Variable
Aggregate Planning
Slack Variable
Unbounded
30. The improvement in the value of the optimal solution per unit increase in the right-hand side of a constraint.
Feasible Solution
Extreme Point
Dual Price
100 percent Rule
31. The process of translating a verbal statement of a problem into a mathematical statement called the mathematical model.
Problem Formulation
Reduced Cost
Dual Price
Standard Form