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Ms-53 question bank (6)

Ms-53 question bank

Wednesday, 09 December 2015 09:53

MS 53 JUNE 2015

Written by

MANAGEMENT PROGRAMME
Term-End Examination
June, 2015
0
MS-53 : PRODUCTION OPERATIONS
MANAGEMENT
.
1. (a) Define operations management. Givesystems view of production operations for
any service organisation.
(b) Explain some upcoming issues of production systems.
2. (a) Why are seven Q.C. tools important for process improvement. Explain each one of
them briefly.
(b) ISO - 9000 is important for Indian companies, why ? What help will it give to
organisations ? Discuss.
3. (a) Why is forecasting important for operations management ? Differentiate qualitative
types of techniques from quantitative types of techniques of forecasting.
(b) What is
Delphi ? Explain advantages of using Delphi.
MS-53 1 P.T.O.
4. (a) Elaborate different factors involved in selecting a suitable forecasting method.
(b) Give steps involved in planning and preparing the process layout.
5. (a) Differentiate time study from work sampling. Discuss steps required for
conducting work sampling.
(b) Why is assembly line important in mass production ? Explain with the help of
suitable example the balancing of assembly lines.

December, 2009

MS-53 : Production/Operations Management

SECTION – A

1. (a) What factors have contributed to the increased emphasis on faster product development and introduction ?

(b) A manufacturing firm has three proposals for a product. Either it can be purchased from an outside vendor at Rs. 4.00 per unit or it can be manufactured in-plant. There are two alternatives for in-plant manufacturing. Either a fully automatic unit is procured, involving fixed cost of Rs. 30,000 and variable cost of Rs. 2.75 per unit. Alternatively, a semi-automatic unit would cost Rs. 20,000 as fixed cost and Rs. 3.00 per unit as variable cost. Draw a break-even chart for these alternatives. Suggest range of production - volume suited for these alternatives.

2.(a)  Give an example of a business that would use a push and one that would use a pull operations control system. Explain your choice and briefly describe how the system would work.

(b) Assume that your stock of sales merchandise is maintained based on the forecast  demand. If the distributor's sales personnel call on the first day of each month, compute your forecast sales for each of the three methods mentioned here.

Month

Actual

June

140

July

180

August

170

(i) Using a simple three - month moving average, what is the forecast for September ?

(i) Using a weighted moving average, what is the forecast for September with weights of 0.20, 0.30 and 0.50 for June, July and August respectively ?

(iii) Using simple exponential smoothing and assume that the forecast for June, had been 130, calculate the forecasts for September with a smoothing constant alpha of 0.30.

3. (a) What factors should be taken into account when taking make-or-buy decision ? Illustrate your answer with examples from a service and a manufacturing organisation.

(b) In an attempt to increase productivity and reduce costs, Rho Sigma corporation is planning to install an incentive pay plan in its manufacturing plant.

In developing standards for oneoperation, time study analysts observed aworker for a 30 minute period. During that time the worker completed 42 parts. The analysts rated the worker as producing at 130 percent. The base wage rate of the worker is Rs. 50 per hour. The firm has established 15 percent as a fatigue andpersonal time allowance (as a percentage of job time).

(i) What is the normal time for the task ?

(ii) What is the standard time for the task ?

4. (a) What are the differences between implementing JIT in a manufacturing facility and implementing it in a service operation ?

(b) The following tasks must be performed on an assembly line in the sequence and times

specified.

Task

Task Time Seconds

Task that Must Precede

A

50

-

B

40

-

C

20

A

D

45

C

E

20

C

F

25

D

G

10

E

H

35

B, F, G

(i) Draw the schematic diagram.

(ii) What is the theoretical minimum number of stations  required to meet a forecasted demand of 400 units per eight-hour day ?

(iii) Compute the efficiency of the line.

5. (a) What is Group Technology ? Why is Group Technology more important in the present manufacturing scenario ? Briefly explain with an example.

(b) Jobs A, B, C, D and E must go through  Processes I and II in that sequence (i.e., Process I first, then Process II)

Use Johnson's rule to determine the optimal sequence to schedule the jobs to minimize the total required time. Also compute the total completion time for all five jobs.

Job

Required Processing time on A

Required Processing time on B

A

4

5

B

16

14

C

8

7

D

12

11

E

3

9

SECTION – B

6. (a) How does inventory contribute to the  value-adding activities of a firm ? When should inventory be considered a symptom of waste ?

(b) Items purchased from a vendor cost Rs. 200 each, and the forecast for next year's demand is 1000 units. If it costs Rs. 50 every time an order is placed for more units and the carrying cost is Rs. 40 per unit per year, what quantity should be ordered each time ?

(i) What is the total ordering cost for a year ?

(ii) What is the total carrying cost for a year ?

7. Write short notes on any four of the following :

(a) Aggregate Production Planning.

(b) Delphi Technique

(c) Cellular Manufacturing

(d) Pareto Diagram

(e) MRP -II

(f) VED - classification

- o 0 o -MS-53 6

June, 2010

Ms-53 : Production/Operations Management

1(a) Why did JIT approach evolve in Japan and not in Western Countries ? Also compare the vendor relations before and after the installation of JIT approach.

(b) Compare and contrast 'Push' type of production system with 'Pull' type of production system and justify which one is better and in what environment ?

2.(a) Discuss the issues in materials management to be considered important by the management of any manufacturing organisation.

(b) Explain, in what ways independent demand inventories differ from dependent demand inventories.

3.(a) Outline the purpose of MRP and explain  how an MRP system can achieve these purposes.

(b) What is a manufacturing system ? How do we classify the process technology ?

4(a) Explain the complementary role of productivity and wastivity in efffective utilization of resources. Also explain the  environmental concern for Operations managers.

(b) Elaborate your understanding about ISO-9000 certification. Explain its importance for indian manufacturing industries.

5. (a) Discuss how time horizon of forecast is related to the level of decision in production and operations management area with the help of examples. Also explain the importance of considering a trade-off between cost of forecast and accuracy level.

(b) A plastic moulding die manufacturing firm intends to set up a unit for manufacturing dies. It is considering sites A, B and C for  this purpose. Cost data for the sites are given below :

Site

Fixed Cost

Variable Cost

 

Rs.

Rs.

A

50000

135

B

100000

110

C

120000

120

If the selling price is Rs. 300 per die and the annual demand is 3000, which site would you recommend ? At what volume of production would location A become viable ?

6. Write short note on any three of the following :

(a) Total Quality Management

(b) Group Technology and Cellular manufacturing.

(c) Total Productive Maintenance.

(d) Work Measurement.

(e) Computer in Operations Management.

June, 2011

MS-53 : Production/Operations Management

 

1.  (a) Draw a systems view diagram of any service  organization of your choice. Identify its various components. Explain its interdisciplinary nature.

(b) What are the major characteristics of a Production systems ? Discuss some of its upcoming issues that provide economies in production and efficiency in the performance of the system.

2.  (a) Explain with examples, how the TQM  concept can integrate design engineering, manufacturing and service.

(b) What are process capability studies ?  Explain the process capability index with applications to a real life example.

3.  (a) Compare traditional process planning with Computer Aided Process Planning (CAPP). Also explain a generative CAPP system.

(b) Explain the objectives of Total Productive maintenance. Give its importance. Also comment on the concept of TPM promotion.

4.  (a) Why is forecasting required in operations management ? Discuss the concept of forecast error as applied to different conditions.

(b) How are quantitative models of forecasting different from qualitative models ? Discuss in detail time-series model as used for forecasting.

5.  (a) What is facility planning ? Explain with examples different types of layouts as used in manufacturing organizations.

(b) Discuss work measurement as a process to establish task time. Explain the various techniques for developing time standards.

6.  (a) Explain just in time manufacturing with the help of examples. Discuss its advantages and disadvantages.

(b) For an independent demand inventory model, derive the equation for Economic Order Quantity. List all assumptions.

7.  Write short notes on any four of the following :

(a)  OPT

(b)  Break even analysis

(c)  Lean manufacturing

(d)  Kanban system

(e)  Line of Balance for Production Control

(f)  Purpose of aggregate plans. 

December, 2011

Ms-53 : Production/Operations Management

SECTION  -  A

1.  (a)  What are the important elements of JIT manufacturing ? How does JIT system eliminate waste, enforce continuous improvement ? What are the benefits of JIT manufacturing ?

(b)  A company is producing certain type of  circuit breakers. The fixed cost of land building, etc, is Rs 40,000. The variable cost is Rs. 10 per unit production. If the sales price of the product is Rs. 20 per unit, what should be the minimum production level ? If the firm is operating at present so that production is 8000 units what is the firms profit ?

2.  (a)  Define Productivity. Discuss the importance of productivity measurement and productivity improvement in an industry.

(b)  A group of six jobs are to be processed  through a two-step operation. The first operation involves cleaning and the second involves painting. Determine a sequence that will minimize the total completion time for this group of jobs. Processing times are as follows  :

Processing 

Time (hours)

Job

Work centre - I 

Work centre – II

A

20

27

 B

16

30

C

43

51

D

60

12

E

35

28

F

42

-24

3.  (a)  Explain the various factors that are to be taken into account for plant location. Discuss in connection with setting up an electronic equipment plant.

(b)  Processing times (including set up times)   and due dates for six jobs waiting to  be processed at a work centre are given in the following table. Determine the sequence of jobs, the average flow time, average job lateness and average number of jobs at the work centre, for each of these rules.

(i) SPT, and

(ii) EDD.

4.  (a) 

Job

Processing Time (days)

Due date (days)

A

2

7

B

8

16

C

4

4

D

10

17

E

5

15

 F

12

18

What is materials management ? How does materials management in a manufacturing

operation differ from that in a non-manufacturing operation ?

(b)  A time study of a restaurant activity yielded  a cycle time of 2.00 minutes, and the

waitress was rated at  PR=96  percent. The restaurant chain has a 20 percent allowance

factor. Find the standard time.

5. (a) What are some ways managers can try to keep organisations current on Technology? Discuss with suitable examples.

(b)  The following are 3 months of demand data for emergency room service at a hospital. Using a = 0.2 and a forecast of 706 for the first month, calculate the exponentially smoothed forecasts for the demand in months 2 through 4.

Month

Actual

1

721

2

816

3

671

SECTION – B

6.  (a)  Suppose you were asked to set up a cost-control program for an established automobile manufacturing firm. Explain briefly, the steps you would feel were absolutely vital for such a program.

(b)  A local distributer for a national tyre company expects to sell approximately 9600 steel-belted radial tyres of a certain size and tread design neat year. Annual carrying costs are Rs. 16 per tyre, and ordering cost are Rs. 75. The distributer operates 288 days a year.

(i) What is the  E0Q  ?

(ii) How many times per year does the store reorder ?

(iii) What is the length of an order cycle ?

7.  Write short notes on any five of the following :

(a) Zero defects

(b) Preventive Maintenance

(c) The House of Quality Matrix

(d) Flexible Manufacturing systems

(e) Vendor Rating

(f) Group Technology

(g) Chronic loss

(h) Job enrichment. 

December, 2012

Ms-53 : Production Operations Management

1. (a) Define Operations Management. Identify its various components. Explain why operations management is multidiciplinary and how it becomes more effective ?

(b) Explain Quality Function Deployment (QFD) and how is this used by TQM Organizations ?

2. (a) Describe how leadership by top management is the driver of quality. Use appropriate examples relevant to industry in the context of either auto or IT industry.

(b) Define forecasting. Give utility of forecasts in production management. List down general steps in Forecasting Process and specify whether some are more relevant for long term forecasting.

3. (a) What is process capability ? Explain process capability studies as taken up in manufacturing organizations.

(b) Explain importance of layout decisions and capacity decisions. Explain how capacity planning for a single-stage system is done ?

4. (a) Explain with the help of appropriate chart the conventional method of developing process layout.

(b) Discuss Just in time manufacturing. Give its important components. Explain how waste is eliminated ?

5. (a) Explain important elements of Materials Requirement Planning (MRP).

(b) Explain major characteristics of Total Productive Maintenance (TPM). Give benefits of TPM in manufacturing system.

6. Write short notes on any four of the following :

(a) Break Even Analysis.

(b) Flexible Manufacturing System.

(c) Kanban Systems.

(d) Time-series model of demand forecasting.

(e) Optimized Production Technology.

(f) Computer Aided Process Planning (CAPP). 

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