Q1. (a) Define an OR model and give 4 examples. State properties, advantages & limitations.
(b) State the phases of an OR study and give their importance in solving problems.
Q2. What is feasibility region? is it necessary that it should always be a convex set?
Q3. What are the types of inventories? Explain.
Q4. What function does inventory perform?
Q5. Briefly discuss the Delphi method of making forecasts.
Q6. What is MAD? Discuss its importance in selection and use of forecasting models.
Q7. What is operation Research? Account for the growing importance Research in business?
Q.8 What is model and give 4 examples. State their properties, advantages and limitation.
Q9. What is a sequencing problem? Explain and illustrate.
Q10. What is replacement problem? Describe some important replacement situation and policies?