MBA Management of Machines & Materials June 2007 Paper

For More Papers Visit http://www.IGNOUGuess.com IGNOU Papers -IGNOU Forum – IGNOU Articles @IGNOUGuess.com MANAGEMENT PROGRAMME Term – End Examination June, 2007 MS – 5: MANAGEMENT OF MACHINES AND MATERIALS Time: 3 hours Maximum Marks: 100 (Weightage 70%) Note: Section A has five questions that carry 20 marks each. Attempt any three questions from this section. Section B is compulsory and carries 40 marks. SECTION – A 1. (a) Describe the Operation Management decisions and their classification (b) A time study of a restaurant activity yielded a cycle time of 2.00 minutes, and the waitress was rated at PR = 96 per cent. The restaurant chain has a 20 per cent allowance factor. Find the standard time. 10+10 2. (a) Discuss with suitable examples, the process of launching a new product in the market. (b) Processing times (including set-up times) and due dates for five 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: For More Papers Visit http://www.IGNOUGuess.com IGNOU Papers -IGNOU Forum – IGNOU Articles @IGNOUGuess.com (i) First Come First Serve (FCFS) (ii) Earliest Due Date (EDD) 3. (a) Why is R & D a key factor in productivity improvement? Name some ways in which R & D contributes to productivity improvements. (b) A group of seven jobs are to be processed through a two-step operation. The first operation involves at work Centre-1 and the second involves at Work Centre-2. Determine a sequence that will minimize the total completion time for this group of jobs. Processing time (hrs) are as follows: 10+10 4. (a) What are the factors that cause organizations to redesign their products or service? Describe some of the ways a product designer can use CAD (b) A small firms 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 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. 12 for B; and revenue per unit would be Rs. 15 for A and Rs. 16 for B. For More Papers Visit http://www.IGNOUGuess.com IGNOU Papers -IGNOU Forum – IGNOU Articles @IGNOUGuess.com (i) Determine the break-even point in terms of 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? 10+10 5. (a) Explain why quality should be better by following the “Total Quality Management” concept than in a system that depends on final inspection. Give an example of how improving quality can also increase productivity. (b) A toy manufacturer uses 48, 000 rubber wheels per year for its popular dump truck series. The firm makes its own wheels, which it can produce at a rate of 800 per day. The toy trucks are assembled uniformly over the entire year. Carrying cost is Re. 1 per wheel a year. Set-up cost for a production run of wheels is Rs. 45. The firm operates 240 days per year. Determine each of the following: (i) Optimal run size (ii) Minimum total annual cost for carrying and set-up (iii) Cycle time for optimal run size (iv) Run time 10+10 SECTION – B 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 following table shows the activities, times and sequence required For More Papers Visit http://www.IGNOUGuess.com IGNOU Papers -IGNOU Forum – IGNOU Articles @IGNOUGuess.com (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 shorting any or all of B, C, D and G, each two weeks. Which would you shorten? (d) What is the new critical path and earliest completion time? 20 7. Write short notes on any four of the following: 20 (a) Cost of quality (b) Terotecnology (c) Job Enlargement (d) Preventive Maintenance (e) Vendor Curve (f) Learning Curve