IE5552 Operations Research Previous Year Question Papers | Anna University

Prepare for the IE5552 Operations Research examination using previous year question papers, topic-wise analysis, important topics, revision planning and exam preparation strategies.

📚 Subject Details

Subject Code	IE5552
Subject Name	Operations Research
University	Anna University
Degree	B.E. Industrial Engineering
Department	Industrial Engineering
Regulation	Regulation 2019
Semester	5
Question Papers Analysed	1

📊 Topic Weightage Analysis

The following chart summarizes the topic recurrence identified from the available previous year question papers.

📊 IE5552 Topic Weightage

Based on 1 available previous year question papers, this analysis shows how frequently each topic appears.

Topic Recurrence Distribution

Note: Topic weightage represents the percentage of available question papers containing a topic. It does not represent the percentage of examination marks allocated to that topic.

⭐ Important Topics

Based on the analysis of 1 previous year question paper, the following topics deserve special attention.

• Simplex and Big-M Method
  Forms the foundational mathematical basis for solving linear programming problems and finding optimal solutions.
• Transportation and Assignment Models
  Critical core models for optimizing allocation and distribution logistics with practical industrial engineering applications.
• Network Models
  Essential for optimizing path routing, flow distribution, and connection networks such as minimal spanning trees and shortest routes.
• Inventory Models
  Fundamental for industrial control systems, managing P systems, Q systems, and handling price break scenarios.
• Project Management (PERT/CPM)
  Key analytical tool used for scheduling, network diagramming, and project time-cost trade-offs.
• Queuing Theory
  Important for analyzing waiting lines, service systems, and congestion control in operations management.

📅 7-Day Revision Plan

Day	Topics	Revision Focus
Day 1	• Linear Programming and Solution Techniques	Master the step-by-step procedures of the Simplex Method and Big-M Method for standard LP problems.
Day 2	• Duality and Sensitivity Analysis	Understand primal-dual relationships, economic interpretation of duality, and sensitivity analysis principles.
Day 3	• Transportation and Assignment Models	Practice finding initial basic feasible solutions and optimal allocations using transportation and assignment algorithms.
Day 4	• Network Models	Solve problems related to Minimal Spanning Tree, Shortest Route, and Maximal Flow models.
Day 5	• Inventory Models	Review continuous review (Q system), periodic review (P system), and inventory models with price breaks.
Day 6	• Queuing Theory	Learn the operational formulas and characteristics of queuing models and customer waiting behavior.
Day 7	• Project Management	Practice network construction, critical path identification, and duration calculations using PERT and CPM.

📄 Previous Year Question Papers

Download the available IE5552 previous year question papers below.

Exam	Regulation	Semester	File	Download
Nov/Dec 2023	Regulation 2019	5	Question Paper	Download

⚡ Last Minute Revision Tips

• Memorize standard algorithm steps for the Simplex and Big-M methods to avoid calculation errors during iterations.
• Keep key inventory formula variations handy, particularly for Q systems, P systems, and quantity discount conditions.
• Ensure network diagrams for PERT/CPM and shortest route problems are drawn clearly with directional arrows and correct node labels.
• Practice calculating critical paths and float times carefully to prevent arithmetic mistakes in project management questions.
• Review dual formulation rules thoroughly to quickly convert primal linear programs into their dual counterparts.

📝 Exam Strategy

Time Management ⏱️

• Allocate time wisely between formulation problems and algorithmic calculations, ensuring enough time for iterative methods like Simplex.
• Do not get stuck on a single mathematical iteration; write down the formulation and intermediate steps to secure partial credit.

Answer Writing Tips ✍️

• Clearly state objective functions, decision variables, and constraints before beginning any mathematical derivation or numerical solution.
• Highlight final answers clearly, stating units and practical interpretations where applicable.

Diagram Presentation 📐

• Draw neat network diagrams for PERT/CPM, minimal spanning trees, and shortest route problems with clear labeling.
• Use tables for transportation, assignment, and simplex iterations to present calculations in an organized, readable format.

Common Mistakes to Avoid ⚠️

• Failing to balance transportation or assignment matrices before applying solution techniques.
• Sign errors or misplacement of artificial variables when setting up Big-M and Simplex tableau iterations.

❓ Frequently Asked Questions

What are the core topics tested in Operations Research?

The core topics include Simplex and Big-M methods, Duality, Sensitivity Analysis, Transportation and Assignment models, Network models, Inventory systems, Queuing Theory, and Project Management (PERT/CPM).

Are graphical methods required if Simplex is emphasized?

While the Simplex and Big-M methods are primary numerical tools, understanding basic linear programming concepts helps build the foundation for advanced optimization.

How should I prepare for network and project management questions?

Focus on drawing accurate network diagrams, computing earliest and latest event times, identifying critical paths, and understanding PERT probabilistic time estimates.

What formulas are most critical for Inventory Models?

Key formulas include Economic Order Quantity (EOQ) derivations, total inventory cost formulas, reorder point calculations, and handling price break intervals.

How important are table-based problems like Transportation and Assignment?

Very important. Practicing step-by-step matrix reduction and optimality tests ensures you can solve allocation problems accurately under examination conditions.

What is the best way to handle lengthy mathematical derivations during the exam?

Write down all known parameters, formulas, and structured steps clearly. Even if numerical arithmetic goes wrong, structured steps and valid formulas earn partial credit.

🎯 Final Preparation Advice

Use these previous year question papers to identify recurring concepts and prioritize your revision. Focus particularly on the important topics, practise numerical problems where applicable, and revise important diagrams and formulas before the examination.

Consistent practice and strategic revision can make your examination preparation more effective.