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GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-V (NEW) EXAMINATION - WINTER 2020
Subject Code:3152511 Date:29/01/2021
Subject Name:Production and Operation Management
Time:10:30 AM TO 12:30 PM
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Total Marks: 56
Instructions:
- Attempt any FOUR questions out of EIGHT questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Explain the term "Productivity” in brief. Marks 4
(b) Discuss in detail based on which criteria make or buy decision depends? 7
(c) Define and Differentiate between Production Planning and Process Planning by giving example in each case. N b
Q.2 (a) Explain Delphi method for Demand Forecasting.
(b) Identify the basic inputs, Conversion Media and Outputs for the following production Systems. (1) Hospital and (2) Forging Industry.
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(c) Discuss: (1) The strategic role of forecasting in supply chain management. & (2)Demand behavior N b
Q.3 (a) Write brief note on “Aggregate planning and its pure strategies”.
(b) What are the basic Inputs‘of MRP?
(c) What is the meaning of least squares in a regression model? The following data relate the sales'figures in thousands rupees of the air conditioners to the number of customers registered that week.
Week 1 2 3 4
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Customers 16 12 18 14
Sales :(Rs.) x 10° 330 270 380 300
(i) Perform a linear regression that relates sales of air conditioners to customers. (ii) If the forecast is for 20 customers next week, what are the sales expected to be? N b
Q.4 (a) Write brief note on “Types of Gantt charts as applied to scheduling”
(b) What is scheduling? What are the scheduling criteria? What is sequencing jobs in work centers? Name and explain five priority sequencing rules
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(c) Consider the following problem in single machine scheduling with independent jobs. N b
Q.5 (a) Obtain the optimal schedule to minimize mean flow time.
(b) Write in detail about sequencing jobs through one process.
(c) Write a shortnote on Dispatching rules. N b
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Q.6 (a) What are objective of assembly line balancing? Discuss rank positional weight method.
(b) Describe the main functions of Supply Chain management
(c) State the importance and objectives of material management. Explain: vendor development and selection. N b
Q.7 (a) What is meaning of level production chase demand, peak demand, overtime/under time, subcontracting, backlogs, backordering?
(b) Briefly Explain the steps which are followed in "KANBAN SYSTEM".
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(c) Write a short note on E-commerce and Electronic data Interchange N b
Q.8 (a) A Purchase manager has decided to jplace an order for a minimum quantity of 500 units of a particular’/item of inventory in order to get discount of 10%, past records reveal that 8 orders (each of 200 units) were placed last year. Given-ordering cost = Rs 500/year, Inventory Carrying cost = 40% of inventory value and price of item = Rs 400 per unit. What is the effect of this-decision on company?
(b) Write short note on the'ABC classification system.
(c) Discuss various inventory costs associated with organization . Sgate and explain' Concepts and applications of JIT in Manufacturing ector. N b
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