- [A] multi-disciplinary
- [B] scientific
- [C] intuitive
- [D] collect essential data

**Answer:** Option [A]

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Questions

1. Operations Research approach is _______.

- [A] multi-disciplinary
- [B] scientific
- [C] intuitive
- [D] collect essential data

**Answer:** Option [A]

2.In Program Evaluation Review Technique for an activity, the optimistic time 2, the pessimistic time is 12 and most-
likely time is 4. What is the expected time?

- [A] 0
- [B] 1
- [C] 5
- [D] 6

**Answer:** Option [C]

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3. A feasible solution to a linear programming problem _____.

- [A] must satisfy all the constraints of the problem simultaneously
- [B] need not satisfy all of the constraints, only some of them
- [C] must be a corner point of the feasible region.
- [D] must optimize the value of the objective function

**Answer:** Option [A]

4. If an artificial variable is present in the basic variable column of optimal simplex table, then the solution
is___________.

- [A] alternative
- [B] bounded
- [C] no solution
- [D] infeasible

**Answer:** Option [D]

5. In the optimal simplex table, Zj-Cj=0 value indicates _____________.

- [A] alternative solution
- [B] bounded solution
- [C] infeasible solution
- [D] unbounded solution

**Answer:** Option [A]

6. Principle of complementary slackness states that____________.

- [A] primal slack * dual main =0.
- [B] primal main + dual slack=0
- [C] primal main + dual surplus=0
- [D] dual slack * primal main not equal to zero

**Answer:** Option [A]

7. The initial solution of a transportation problem can be obtained by applying any known method. How-ever, the only
condition is that__________

- [A] the solution be optimal
- [B] the rim conditions are satisfied
- [C] the solution not be degenerate
- [D] the few allocations become negative

**Answer:** Option [B]

8. The calculations of opportunity cost in the MODI method is analogous to a_____.

- [A] Zj-Cj value for non-basic variable column in the simplex method.
- [B] value of a variable in XB-column of the simplex method.
- [C] variable in the B-column in the simplex method.
- [D] Zj-Cj value for basic variable column in the simplex method.

**Answer:** Option [A]

9. For a salesman who has to visit n cities, following are the ways of his tour plan___.

- [A] n!
- [B] n
- [C] (n+a)!
- [D] (n-a)!

**Answer:** Option [D]

10. Simplex method was designed by ___________.

- [A] Dantzig
- [B] A.Charnes
- [C] Lemke
- [D] Hungarian

**Answer:** Option [A]

11. Dual Simplex Method was introduced by _______.

- [A] Dantzig
- [B] A.Charnes
- [C] Lemke
- [D] Hungarian

**Answer:** Option [C]

12. The cell with allocation can be called____

- [A] Cell
- [B] Empty cell
- [C] Basic cell
- [D] Non-basic cell

**Answer:** Option [C]

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