IMT 15 Production and Operation Management M2

IMT 15 Production and Operation Management M2

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PART– A
1. What is Production Management? What is Operations Management? ‘Production is the heart
of an organization’ Comment .
2. Explain how the following factors help improve the competitiveness of a manufacturing
organization .
a. Low production costs
b. Fast delivery of products/Services.
c. On-time deliveries
d. High quality products/services
e. Flexibility
3. Bring out the stages in the development of a new product. Explain each stage in brief. How
QFD technique helps in product and process design .
4. What is process selection ? Why is it essential for a successful organization ? Explain
Criteria for process selection ?
5. a). Steps in process design.
b). Product-process matrix .

 
PART– B
1. Define location. Discuss the factors which determine the location of a plant .How is location for a
plant selected ? Discuss simple median model for selected plant location with and example .
2. What is layout planning ? What are its objectives. In brief give the relevance of group technology
in plant layout in todays situation .Under what conditions is G.T. layout appropriate .
3. Compare product and process layouts and under what circumstances product and process
layouts can be used. Explain with the help of an example how travel chart method helps in
selecting the best layout among several alternatives ?
4. Define the term capacity planning . How plant capacity is related with plant layout , process design
and equipment selection ?
5. The processing time and due dates for 5 jobs A,B,C,D and E are given in the table below :
Job Processing Time (days ) Due date (days from now)
A 10 18
B 8 22
C 6 27
D 12 17
E 7 42 Production and Operation Management
Sequence these jobs according to EDD Evaluating Sequencing Rules and Calculate .
a) Total Completion Time
b) Total Flow Time
c) Average Flow Time
d) Average number of jobs in the system.
e) Average job lateness

 
PART– C
1. What is master production Schedule and what are its inputs? Describe the process of
preparing a MPS. How MPS differ between produce-to-stock and produce-to-order firms.
2. Describe the various phases in a ‘project life cycle’ .What is a network diagram? Distinguish
between PERT and CPM and state where they are used .Explain steps in network crashing?
3. What is Quality? How it is insured? Explain Quality control techniques. Bring out the famous
Deming principles of Quality. How far Quality circles ensure workers participation?
4. What are the trends in maintenance management? Outline the various types of maintenance.
What is predictive maintenance? What is its advantages .Explain the ‘bath tub curve’?
5. Define the terms ‘Inventory’ and ‘Inventory management’ Why are inventories held in
business? Explain the various techniques of inventory control a factory uses

 

CASE STUDY – I
ABC Company Ltd, a manufacturer of floppy disks, inspects a sample of 50 disks from each day’s
output. A quality inspector of the company decides on the acceptability or otherwise of the disks
based on a variety of attributes.
Date No of
Defectives
Date No. of
defectives
Date No of
defectives
18.02.2010
19.02.2010
20.02.2010
21.02.2010
22.02.2010
23.02.2010
24.02.2010
3
10
13
4
12
14
08
25.02.2010
26.02.2010
27.02.2010
28.02.2010
29.02.2010
01.03.2010
02.03.2010
7
18
1
0
4
9
22
03.03.2010
04.03.2010
05.03.2010
06.03.2010
07.03.2010
08.03.2010
7
6
19
3
9
7
Data relating to the number of defectives in the sample over the past 20 days are given above.
The production manager suspects that the variation in quality was due to deputing an inexperienced
substitute operator instead of a regular one, on three days during the period. With the use of a fraction
defective chart, specifying the upper and lower control Limits or otherwise, determine the days of poor
quality which can be traced or assigned to the inexperienced operator. Do the number of such days,
match the number of points indicating out of control situations . Production and Operation Management.
CASE STUDY-II
The activities of a project and their time estimates are given below :
Activity
Estimated duration of activity (in weeks)
Optimistic time (to) Most likely time(tm) Pessimistic time (tp)
1-2 2 5 8
1-4 4 19 28
1-5 5 11 17
2-3 3 9 27
2-6 3 6 15
3-6 2 5 14
4-6 3 6 15
5-7 1 4 7
5-8 2 5 14
6-8 6 12 30
7-8 2 5 8

a) Draw the PERT network Diagram
b) Determine the mean time and standard deviation of each activity
c) Determine the critical path and the standard deviation for the critical path
d) Calculate the slack for the events
e) Calculate the total float, free float and independent float for each activity .
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