# Exam Tips For Operations Research 2015

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Exam tips for Operations research

Dear Students,

The OR Paper consists of 5 chapters divided into 4 major units. The numerical of the following chapters need to be done well

1. Graphical LPP- formulation and graphical solution
2. Simplex- Minimization method
3. Sensitivity (IMP)
4. Assignment- Minimization, maximization and restricted route type
5. VAM -Transportation (including MODI and degeneracy)
6. Decision sciences- tree diagram, EMV, EPPI, EOL
7. Maximin, Minimax, Alpha , Laplace and Minimax regret in Decision theory
8. CPM- Floats and Forward and backward path computations
9. PERT
10. Crashing

OR paper would contain 5 questions each of 15 marks. Assignment and transportation would be asked in one main question. The tentative pattern of paper would be as follows

Q1- Graphical LPP, Simplex LPP, 3 small concepts (Solve any 2)

Q2- Transportation, assignment, 3 small concepts (solve any 2)

Q3- CPM, PERT, Crashing (Solve any 2)

Q4- Computation of EPPI,EMV,EOL; Minimax Laplace alpha and Minimax regret; Decision tree (Solve any 2)

Q5- Case study:-               Case study is expected from the following chapters

Transportation (VAM may be solved. MODI and then optimization need to be done)

PERT or Crashing

Sensitivity analysis (Maximization simplex fully or partially solved)- Highly expected

Time management is a key in OR paper.

The following questions need to be done well for theory

1. Constraints in LPP
2. Infeasibility in Graphical and Simplex
3. Redundancy in graphical and simplex
4. Iso profit line in graphical
5. Degeneracy in simplex
6. Slack, surplus and artificial variables in simplex
8. Degeneracy in transportation
9. Methods of doing transportation sum
10. Hungarian method in assignment problem
11. Diff between transportation and assignment
12. Types of float in CPM
13. Critical and sub critical paths
14. Objectives of crashing
15. Updating
16. 3 Time estimate in PERT
17. CPM vs PERT
18. Decision making under risk and uncertainty
19. Decision tree
20. Perfect information in decision theory

For further clarifications, please feel free to contact Prof Vipin Saboo on 9820779873

Don’t miss to check : Vipin Saboo Tutorials For TYBMS Sem 5 and Sem 6

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