Ms-5 Question bank (12)
Ms-5 Question bank
Ms-5 june 2008
Written by sales@mbaonlinepapers.com sales@mbaonlinepapers.comMS-5 june-2008
MS-5 : MANAGEMENT OF MACHINES AND MATERIALS
1,(a) Explain the Management Systems concept with the help of an exarnple. what are the major distinctions between a production organisation and a service organisation ?
(b) Product A consists of three B type sub-assemblies and one C type sub-assembly. The sub-assembly B consists of one D sub-assembly, one E sub-assembly, and one F sub-assembly. The sub-assembly E consists of a D and a K. The sub-assembly C consists of a G and an F.
(i) Prepare a product tree.
(ii) Prepare the Bill of Materials.
iii)Determine the number of each sub-assembly/components required to prepaffe fifty units of item A.
2. a) Discuss briefly with suitable examples, each of the following :
(i) a long-range capacity decision
(ii) an intermediate-range capacity decision
(iii) a short-range capacity decision
b) A small firm intends to increase the capacity of a bottleneck operation by adding a new machine. Two alternatives A and B have been identified, and the
associated costs and revenues have been estimated. Annual fixed costs would be Rs. 40,000 for A, and Rs. 30,000 for B; variable costs per unit would be Rs. 10 for A and Rs. L2 for B; and revenu e per unit would be Rs. 15 for A and Rs. 16 for B.
- (i)Determine the break- even point, in units, for each alternative.
- (ii)At what volume of output would the two alternatives yield the same profit ?
- (iii)If expected annual demand is 12,000 units, which alternative would yield a higher profit ?
3. (a) Why are new facilities built on sites that are far away from the companies'
present sites ? Justify your answer with suitable examples'
(b) The time following observations have been taken in a study experiment :
|
Observation |
Time (in minutes) |
|
1 |
0.11 |
|
2 |
0.10 |
|
3 |
0.11 |
|
4 |
0.10 |
|
5 |
0.14 |
|
6 |
0.10 |
|
7 |
0.10 |
|
8 |
0.09 |
|
9 |
0.12 |
|
10 |
0.09 |
|
11 |
0.12 |
|
12 |
0.11 |
Determine
(i) the observed time,
(ii) the norrnal time, and
(iii) the standard time,
using a performance rating of 0.95 and a percent allowance of 8 percent
4- (a) Define value analysis. Differentiate between the traditional reduction technique and value analysis.
(b) A group of six jobs are to be processed through a two-step operation. The first operation involves leaning and the second involves painting . Determine a sequence that will minimize the total completion time for this group of jobs. Also, calculate the idle times for both machines.
|
Job |
Processing Time (Hours) Work Centre-l |
Processing Time (Hours) Work Centre-2 |
|
A |
20 |
27 |
|
B |
16 |
30 |
|
C |
43 |
51 |
|
D |
60 |
12 |
|
E |
35 |
28 |
|
F |
42 |
24 |
5. (a) why is R&D a key factor in productivity improvement ? Name some ways in which R&D contributes to productivity improvements.
(b) A local distributor for a national tyre company expects to sale approximately 9600 steel belted radial tyres of a certain size and tread design next year . annual carrying costs are rs 16 per tyre and ordering costs are rs75 . the distributor operates 288 days a year
(i) What is the EOQ ?
(ii) Howmanytimesperyeardoesthestore reorder ?
(iii) What is the length of an order cycle ?
6 The R&D Department is planning to bid on a large project for the development
of a new communication system for commercial planes. The accompanying table shows the activities, times, and sequences required.
|
Activity |
Immediate Predecessor |
Time (Weeks) |
|
A |
- |
3 |
|
B |
A |
2 |
|
C |
A |
4 |
|
D |
A |
4 |
|
E |
B |
6 |
|
F |
C,D |
6 |
|
G |
F |
2 |
|
H |
C,D |
3 |
|
I |
E,G,H |
3 |
(a) Draw the Network Diagram.
(b) What is the critical path ?
(c) Suppose you want to shorten the completion time as much as possible,
and have the option of shortening any or all of B, c, D and G, each two weeks. Which would you shorten ?
- (b)What is the new critical path and earliest completion time ?
7 . Write short notes on any four of the following :
(a) Cost of Quality
(b) CIM
(c) Standardization and Codification
(d) Buffer Stock
(e) Zero defects
(f) Taxonomy of waste
Ms-5 june 2009
Written by sales@mbaonlinepapers.com sales@mbaonlinepapers.comMS-5 june-2009
MS-5 : MANAGEMENT OF MACHINES AND MATERIALS
1. (a) Define a 'system'. Use this concept in explaining a production system. Briefly
indicate the relationship of production systems to operations management.
(b) Discuss how life cycle approach to product and systems can help decision making. Use examples.
2. (a) Why is there a need for maintenance ? Discuss different types of maintenance as used in manufacturing type of organisations.
(b) Draw a flow process chart of changing tyre of your motor cycle or car. Assume all necessary data.
3. (a) Def ine " Value Engineering" . Discuss different phases of value engineering
approach. Use examples.
(b) Diffeierrtiate continuous flow processes from intermittent flow processes. Give exarnpies.
4(a) Why are service organisations usually provided with higher capacities than the
requirement ? Explain with some examples.
(b) Why are control charts used ? Differentiate between control charts for variables and control charts for attributes. Give examples.
5(a) In a situation of 2 jobs and 'm' machines. How doer do we determine the optimal sequence of these jobs to minimise the total processing time using graphical method ? Elaborate the method using following problem.
|
M1 sequence & time
|
|
||||||||||||
|
M2 sequence & time
|
|
- (b)Discuss the objectives of maintenance how is failure analysis done Explain
6.What is the significance of assembly lines ? Discuss different types of assembly lines and respective advantages and disadvantages.
7.a) Discuss different functions of stores and detail how stores should be organised.
b) Discuss ABC system of inventory control.
8. write a short notes any two of the following.
(a) Waste management
(b) Materials Requirement Planning
(c) Control Charts for attributes
(d) Standardisation and codification
Ms-5 june 2010
Written by sales@mbaonlinepapers.com sales@mbaonlinepapers.comMS-5 june-2010
MS-5 : MANAGEMENT OF MACHINES AND MATERIALS
1. a) Why does the "proper" operations strategy keep changing for companies that are world-class competitors ?
(b) Some suggest that customer expectation is the key to service success. Give an example from your own experience to support or refute this assertion.
2.(a) "You don't inspect quality into a product; you have to build it in". Discuss the implications of this statement.
(b) Find the economic order quantity and the reorder point, given the following data :
Annual demand (D) = 1000 units. Ordering cost (S) = Rs. 50 per order. Holding cost (H) = Rs. 12.50 per unit per year Cost per unit (C) = Rs. 125.00. Lead time (L) = 5 days. Assume 250 working days in a year.
3. (a) Why are work measurement and time study activities still necessary today ?
(b) A company that produces pleasure boats has decided to expand one of its lines. Current facilities are insufficient to handle the increased workload, so the company is considering three alternatives, A (new location), B (subcontract), and C (expand existing facilities). Alternative A would involve substantial fixed costs but relatively low variable costs : fixed costs would be Rs. 25,000,00 per year, and variable costs would be Rs. 5000
per boat.
Subcontracting would involve a cost per boat of Rs. 25,000 and expansion would require an annual fixed cost of Rs. 5,00,000 and a variable cost of Rs. 10,000 per boat. For what range of output would each alternative yield the lowest total cost ? Which alternate would yield the lowest total cost for an expected annual volume of 150 boats ?
(a) How does the role of a project manager differ from that of a traditional functional
manager ?
(b) An industrial engineer conducts a time study on an operator and determine that a specific task takes about two minutes to complete. The engineer estimates that the particular operator that she is observing is working about 20 percent faster than normal. The company has an allowance factor of 15 percent of job time for personal needs, delays, and fatigue. Calculate the standard time for this task.
5(a) Explain value engineering giving its area of application in some industry which you are aware of.
(b) There are seven jobs that must be processed in two operations. A and B. All seven jobs must go through A and B in that sequence A first, then B.
( i ) Determine the optimal order in which the jobs should be sequenced through the process using these times.
|
Job |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
Machine A |
9 |
8 |
7 |
6 |
1 |
2 |
4 |
|
Machine B |
6 |
5 |
7 |
3 |
2 |
6 |
7 |
ii) Draw a graph similar to the solved problems showing the sequence of jobs.
iii) What is the total completion time for all seven jobs
6. The following activities are part of a project to be scheduled using CPM :
|
Activity |
Immediate Predecessor |
Time (Weeks) |
|
A |
- |
6 |
|
B |
A |
3 |
|
C |
A |
7 |
|
D |
C |
2 |
|
E |
B,D |
4 |
|
F |
D |
3 |
|
G |
E,F |
7 |
a) Draw the network
b) What is the critical path ?
c) How many weeks will it take to complete the project ?
d) How much slack does activity B have ?
7. Write short notes on any four of the following :
a) Preventive Maintenance
b) Automated storage/retrieval
c) CAD/CAM
d) ABC Analysis
e) Tero Technology
f) LIFO system
Ms-5 Question bank