Ms-5 Question bank (12)
Ms-5 Question bank
Ms-5 june 2011
Written by sales@mbaonlinepapers.com sales@mbaonlinepapers.comMS-5 june-2011
MS-5 : MANAGEMENT OF MACHINES AND MATERIALS
1. (a) How is value added to any entity using operations function ? Explain the conceptual model of a 'Operations System'.
(b) Discuss life cycle approach in Operations Management. Use examples to elaborate.
2. (a) What is Product Design ? How does it influence the Process Design ? Explain with examples.
(b) What type of layout would you suggest in designing a big hospital ? Discuss.
3. (a) How is computerized layout planning is done ? Discuss its benefits and different
softwares used for this purpose.
(b) Define capacity. Explain the process used for capacity planning. Take example of any organization of your choice.
4. (a) Why is material handling important ? Discuss its classification.
(b) What are common classification systems of materials ? Explain importance of
codification and standardization of materials.
5. (a) What are different forms used by purchase department ? Discuss different criteria
employed for evaluating purchasing system.
(b) Discuss importance of Value Engineering. Also list its various phases.
6. (a) What is acceptance sampling ? Explain different types of sampling plans. Explain
Operating Characteristic Curve.
(b) Why are control charts used ? Discuss mean and R type of control chart. Give its importance.
7. (a) Where do we use work sampling ? Explain its step as used for standard time determination.
(b) Discuss ABC system of Inventory Control. Give its variants as used in Industry.
8. Write short notes on any two of the following
(a) Methods Study
(b) Programme Evaluation and Review Technique.
(c) Assembly line
(d) Planning and Control for job shop production
Ms-5 Dec 2007
Written by sales@mbaonlinepapers.com sales@mbaonlinepapers.comMS-5 Dec, 2007
MS-5 : MANAGEMENT OF MACHINES AND MATERIALS
l. (a) Explain how the system concept can be used in explaining the terms waste and waste management.
(b) A company is considering adding a new feature that will increase unit sales by !2 percent and product cost by 10 percent. Profit is expected to increase by 16 percent of the increased sales. Initially the product cost incurred by the company was 63 percent of the sales price. Should the new feature be added ? Justify your answer.
2. (a) Four different organisations are considering youl home town as a potential location for one of the following :
(i) A medical research centre
(ii) A softdrink 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 worker in an engineering corporation is expected to work for 420 minutes in a shift of 8 hours . the remaining time, i.e. 60 minutes is meant for rest and personal needs etc.
Determine :
(i) Standard time per piece of a job whose normal time is 4 minutes.
(ii) If the operator produces 120 pieces in the shift, what is his efficiency ?
3. a)Explain different types of maintenance, giving suitable examples. Suggest an organisation structure for the maintenance department of a medium-sized company
(b) A small manufacturing firm has three proposals for a product. Either it can be purchased from an outside vendor at Rs. 4 per unit or it can be manufactured in-plant. There are alternatives for in-plant-manufacturing. One option it that a fully
automatic unit is procured involving fixed cost of Rs. 30,000 and variable cost of Rs. 275 per unit. Alternatively, a semi-automatic unit would cost Rs. 20,000 as fixed cost and Rs. 3 per unit as variable cost.
Draw a break-even chart for these alternatives. Suggest range of production-volume suited for these alternatives.
4. a) Explain various factors that govern the design of any layout of a plant. Give suitable examples.
b) There are seven jobs as under, each of which has to go through machines A and B in that order. The processing time is in hours.
|
Job |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
Machine A |
3 |
12 |
15 |
6 |
10 |
11 |
9 |
|
Machine B |
8 |
10 |
10 |
8 |
12 |
1 |
3 |
Determine the sequence of jobs that will minimize the total time for completion of all the jobs.
5. (a) What do you understand by Quality ? What is the difference between inspection and quality ? Describe the concept of Total Quality Management. How is it different from inspection and quality control ?
b) A repair and maintenance company is engaged in providing service to a particular brand o[ popular vehicle. It uses 8000 units of a moving part per year as replacement of the old parts; each part cost Rs. 250. The set-up costs are estimated at Rs. 100 and the inventory carrying cost is the average of 20% of the inventory cost. Supply of the parts is at the rate of 80 per day.
Calculate the following :
(i) Optimal order quantity
(ii) Optimal number of set-ups
(iii) Total variable cost based on optimal policy
Assume 310 working days in a year
6. The R&D department is planning to bid on a large proiect for the development of a new communication system for commercial planes. The following table shows the activities, times, and sequences required
|
Activity |
Immediate Predecessor |
Time (Weeks) |
|
A |
- |
2 |
|
B |
- |
3 |
|
C |
- |
3 |
|
D |
A |
5 |
|
E |
B |
5 |
|
F |
B |
9 |
|
G |
C |
3 |
|
H |
D |
3 |
|
I |
E |
5 |
|
J |
F,G |
6 |
|
K |
H,I |
4 |
(a) Draw the network diagram.
(b) What is the critical path ?
(c) How many weeks will it take to complete the project ?
(d) Which activities have slack and how much ?
7 . Write short notes on any four of the following :
(a) Operating characteristic curve
(b) ABC Analysis
(c) Job Enrichment
(d) CAD/CAM
(e) Tero Technology
(f) Aggregate planning
Ms-5 Dec 2008
Written by sales@mbaonlinepapers.com sales@mbaonlinepapers.comMS-5 Dec, 2008
MS-5 : MANAGEMENT OF MACHINES AND MATERIALS
l. (a) Give two examples (with supporting details) for each of a service and manufacturing firm, of the impact of technology in service and product design.
(b) Data for a breal+even analysis revealed that total cost at volumes of 600 and 800 units were Rs. 8,00,000 and Rs. 9,60,000 respectively. Revenue is Rs. 1,440 per unit. Based upon this information, what are
(i) the variable cost per unit, and
(ii) the fixed cost ?
2. (a) How do the capacity considerations in a hospital, automobile service centre and a company making lawn mowers, differ ?
(b) Rocket Propulsion Company is considering the expansion of a solid-propelled manufacturing process by adding more l-ton-capacity curing furnaces. Each batch (1 ton) of propellant must undergo 30 minutes of fumace time, including load and unload operations. However, the furnace is used only 80 percent of the time due
to power restrictions in other parts of the system. The required output for the new layout is to be 16 tons per shift (8 hours). Plant (system) effici,ency is estimated at 50 percent of system capacity.
(i) Determine the number of furnaces required.
(ii) Estimate.the percentage of time the furnace will be idle.
3. (a) How does inventory contribute to the value-adding activities of a firm ? When should inventory be considered a symptom of waste ? Explain with suitable examples.
(b) A plastics moulding firm produces and uses 24,400 Teflon bearing inserts annually. The cost of setting up for production is Rs. 700 and the weekly production rate is 1000 units. If the production cost is Rs. 55 per unit and the anhual carrying cost is Rs. 15 per unit, how many units should the firm produce during each production run ? Assume a 52-week year.
4. (a) Should a firm always attempt to “meet demand" ? Why or why not ? Justify answer with suitable examples.
(b) Define Productivity. How do operations managers contribute in improving productivity ? Explain with examples.
5. (a) Discuss with suitable examples, the process of launching a new product in the market. Explain with the help of suitable examples.
(b) Use Johnson's rule to determine the sequence that results in the minimum flow time for the seven jobs listed below. Alljobs must follow the same sequence of machine first, and then polish.
|
Time required to do Job (minute) A B C D E F G |
|
Machine 10 6 5 4 6 9 7 Polish 2 3 12 5 9 11 6 |
a) What is the optimal sequence of jobs ?
b) What is the minimum time flow to finish these seven jobs
SECTION B
The following table shows the jobs of a project with their duration in days.
|
Jobs |
Duration (Days) |
|
1-2 |
10 |
|
1-3 |
8 |
|
1-4 |
9 |
|
2-5 |
8 |
|
3-7 |
16 |
|
4-6 |
7 |
|
5-7 |
7 |
|
5-8 |
7 |
|
6-7 |
8 |
|
6-9 |
5 |
|
7-10 |
12 |
|
8-10 |
10 |
|
9-10 |
15 |
|
10-11 |
8 |
|
11-12 |
5 |
i) Draw the network diagram.
ii) Compute the earliest event time and latest event times
iii) Determine the critical path and total project duration
7 . Write short notes on any of the following :
(a) VED Analysis
(b) Consumer's risk
(c) Learning Curve
(d) Standardization and Codification
(e) Delphi Technique
(f) Bill of Material
Ms-5 Question bank