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Posted By: RAFI Member Level: Gold Posted Date: 22 May 2008
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2006 Indira Gandhi National Open University (IGNOU) M.B.A Business Administration MS-5 : MANAGEMENT OF MACHINES AND MATERIALS, December, 2006 Question paper
MANAGEMENT PROGRAMME
Term-End Examination
December, 2006
MS-5 : MANAGEMENT OF MACHINES AND MATERIALS
Time : 3 hours Maximum Marks ¦. 100
, (Weightage 70%)
Note :
(i) Section A has five questions that carry 20 marks each. Answer any three questions from Section A,
(ii) Section B is compulsory and carries 40 marks.
SECTION A
1. (a) Explain the meaning and importance of plant layout decision. How does it improve productivity ?
(b) Product X sells for Rs. 100 each and Y sells for Rs. 120 each. Product X has fixed costs of Rs. 20,000 per year and variable cost of Rs. 12 per unit, whereas product Y has fixed costs of Rs. 8,000 and variable cost of Rs. 40 per unit. At what production rate (volume) are the profits from both products equal ? 10+10
2. (a) Define FMS. What is the general field of FMS application significant in terms of the potential market size for its capability ? State with reference to any production unit.
(b) The following table contains information regarding jobs that are to be scheduled through one machine :
Job Processing Time (Days) Due Date
A 4 20
B 12 30
C 2 15
D 11 16
E 10 18
F 3 5
G 6 9
Sequence the jobs using
(i) Shortest Processing Time (SPT)
(ii) Processing with due dates
Assume the list is by order of arrival. For each of the methods, determine the average job flow time, average lateness and average number of jobs at the work centre. 10+10
3. (a) Four different organisations are considering your
home town as a potential location for one of the
following :
(i) A medical research centre
(ii) A soft-drink producer
(iii) A steel plant
(iv) A software producer
Select any one of the above four and systematically evaluate the relevant locational factors.
(b) A manufacturing company has an expected usage of 50,000 units of a certain product during the next year. The cost of processing an order is Rs. 20 and the carrying cost per unit is Rs. 0-50 for one year. Lead time on an order is five days and the company keeps a reserve supply of two day's usage.
Calculate :
(i) The economic order quantity, and
(ii) The re-order point (Assume 250 days year) 10+10
4. (a) A worker in a manufacturing industry is expected to
work for a minimum of 400 minutes, in an 8-hour
shift. The remaining 80 minutes are meant for his
personal and rest needs.
Calculate the following :
(i) Standard time per piece of a job whose normal
time is 10 min. (ii) Number of pieces to be produced per day. (Hi) Efficiency of worker for 36 jobs he produced in
a shift.
b) There are six jobs, each of which is to be processed through the machines IVL and M„ in order IVL M„. The processing time is given in hours. Determine the sequence of these jobs which minimizes the total elapsed time. Also, calculate the idle time for both machines. 10+10
Job Number Processing Time on Mj Processing Time on M2
1 5 8
2 9 4
3 4 8
4 7 3
5 8 6
6 5 6
5. (a) Discuss with suitable examples, the role of the Operations Manager in today's context. Do you agree that operations management is a multi-disciplinary function ? Discu
b) A small manufacturing facility is being planned that will feed parts to four manufacturing facilities. The location of the current plants with their co-ordinates and volume requirements is given in the following table.
Plant location Coordinates (x, y) Volume (parts per year)
Location A Location B Location G Location D (300, 400) (360, 430) (200, 350) (450, 500) 4000 5000 6000 3000
Use the centre of gravity method to determine the best location for this new facility. 10+10
SECTION B
A reactor and storage tank are connected by a 7-5 em insulated process line that needs periodic replacement. There are valves along the lines as well as the terminals and they need replacement as well. No pipe and valves are in stock. Their drawings are available. The line is overhead and requires scaffolding. Pipes can be fabricated at the plant. An adequate craft labour is available. The plant methods standard section has furnished the following data :
Activity Time (Hrs.) Predecessor(s)
A - Develop required material list 10 — •
B - Procure pipe 200 A
C - Erect scaffold 15 — -
D - Remove scaffold 5 H, L
E - Deactivate line 10 —
F - Prefabricate sections 40 B
G - Place new pipes 35 F, K, I
H - Fit up pipe and valves 10 G, J
I - Procure valves 220 A
J - Place valves 10 I, K, F
K - Remove old pipes and valves 40 C, E
L - Insulate 25 G, J
M - Pressure Test 8 H
N - Clean-up and Start-up 5 D, M
a) Draw the network diagram of this project plan.
(b) Find the critical path and its duration. 20
7. Write short notes on any four of the following : 4x5=20
(a) Operating Characteristic Curve
(b) Delphi Technique
(c) ABC Analysis
(d) Robotics
(e) Balance delay
(f) Job enrichment
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