Multiple Choice Questions

Determine the single best answer for each of the following multiple choice questions and circle your answer on the answer sheet. No credit will be given if more than one answer is circled.

$4.[1]$ The following network diagram represents a minimum cost transshipment problem.

Which of the following statements are true?

$($a$)$ Excluding non$-$negativity constraints, each decision variable appears in $3$ or more of the constraints in this problem's formulation.

$($b$)$ At the optimal solution, the constraint at Node A will be binding.

$($c$)$ In the optimal solution, at least one node will receive more units than are required at that node.

$($d$)$ At the optimal solution, the constraint at Node B will have no slack.

$($e$)$ None of the above.

$5.[1]$ Which of the following statements are true for the transshipment problem in the previous question?

$($a$)$ According to the diagram, the total product demanded is $80.$

$($b$)$ Node D will clearly send supply to Node E$.$

$($c$)$ Ignoring non$-$negativity constraints, at least two constraints will have non$-$zero slack at the optimal solution.

$($d$)$ In the optimal solution, at least one node will receive more units than are required at that node.

$($e$)$ None of the above.

$6.[1]$ In Excel, we use VLOOKUP to find a target value in a table. If the target value is found, VLOOKUP will return the cell whose row is the same as the row where the target value lies in the table. Which column $($in the table$)$ has the cell returned by VLOOKUP?

$($a$)$ First column.

$($b$)$ Second column.

$($c$)$ Third column.

$($d$)$ Any column $($can be specified$).$