3.
The purpose of a dummy row or column in an assignment problem is to

4.
Consider the following statements.
1. In the single channel queueing model, if μ = λ the queue length would be infinite.
2. In the simplex solution procedure for an LP problem, the shadow prices of the resources are identified with the variables which are included in the optimal solution.
3. In the case of gradual receipt of the ordered quantity, the EOQ will be larger than the EOQ in the case of instantaneous receipt.
4. Time is the only variable in PERT Indicate the correct answer.

6.
Which of the following statement is not correct about six sigma?

8.
Statement I The critical path has been defined as the longest duration path between the first and the last nodes of a project.
Statement II The duration of a project is not always the same as the duration of its critical path.
Statement III The earliest start and finish times of an activity are based on the condition that every activity will not be started and finished as early as possible.
Find the correct answer for given statements being correct or incorrect.

9.
Which of the following statement(s) is/are true?

10.
The main object of work management is

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