Supply chain management & statistical quality control

Supply chain management & statistical quality control






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Supply chain management & statistical quality control Supply chain management & statistical quality control Document Transcript

  • Examination Paper of Supply Chain Management 1 IIBM Institute of Business Management IIBM Institute of Business Management Examination Paper MM.100 Supply Chain Management Section A: Objective Type (30 marks)  This section consists of Multiple Choice questions& Short Answer type questions.  Answer all the questions.  Part One questions carry 1 mark each & Part Two questions carry 2 marks each. Part One: Multiple Choices: 1. When demand is steady, the cycle inventory for a given lot size (Q) is given by a. Q/4 b. Q/8 c. Q/6 d. Q/2 2. There are two firms ‘x’ and ‘y’ located on a line of distance demand(0-1) at ‘a’ and ‘b’ respectively, the customers are uniformly located on the line, on keeping the fact of splitting of market, the demand of firm ‘x’ will be given by, a. (a+b)/2 b. a+(1-b-a)/2 c. (1+b-a)/2 d. a+(a-b)/2 3. Push process in supply chain analysis is also called a. Speculative process b. Manufacturing process c. Supplying process d. Demand process 4. If the Throughput be ‘d’ and the flow time be ‘t’ then the Inventory ‘I’ is given by a. I *d=t b. I=t+d c. d=I*t d. I =d*t 5. Forecasting method is a. Time series b. causal c. Qualitative d. All the above 6. Component of order cost include
  • Examination Paper of Supply Chain Management 2 IIBM Institute of Business Management a. Handling cost b. Occupancy cost c. Receiving costs d. Miscellaneous costs 7. How many distinct types of MRO inventory are there a. One b. Four c. Three d. Two 8. Supply chain driver is a. Inventory b. Return ability c. Fulfillment d. All of above 9. SRM stands for a. Strategic Relationship Management b. Supply Return ability Management c. Supplier Relationship Management d. None of the above 10. Discount factor equals to, where k is the rate of return. a. 1/1+k b. 2/1+k c. 1/1-k d. 1/2+k Part Two: 1. Explain “zone of strategic fit”. 2. Explain “scope of strategic fit”. 3. What do you understand by “stimulation forecasting method”? 4. Write a note on “obsolescence (or spoilage) cost”. 5. Define “square law” in safety inventory of supply chain management. 6. What does the word “postponement” signifies in supply chain? 7. What do you understand by the term “tailored sourcing”? 8. Explain the term “outsourcing”. 9. Write a note on “threshold contracts” for increasing agent efforts. 10. What is “dynamic pricing”?
  • Examination Paper of Supply Chain Management 3 IIBM Institute of Business Management END OF SECTION A Section B: Caselets (40 marks)  This section consists of Caselets.  Answer all the questions.  Each caselet carries 20 marks.  Detailed information should form the part of your answer (Word limit 200 to 250 words). Caselet 1 Orion is a global co. That sells copiers. Orion currently sells 10 variants of a copier, with all inventory kept in finished-goods form. The primary component that differentiates the copiers is the printing subassembly. An idea being discussed is to introduce commonality in the printing subassembly so that final assembly can be postponed and inventories kept in component form. Currently, each copier costs $1,000 in terms of components. Introducing commonality in the print subassembly will increase component cost to$1.025.One of the 10 variants represents 80 percent of the total demand. Weekly demand for this variant is normally distributed ,with a mean of 1,000 and a standard deviation of 200.Each of the remaining nine variants has a weekly demand of 28 with a standard deviation of 20.Orion aims to provide a 95per level of services .Replacement lead time for components is four weeks. Copier assembly can be implemented in a matter of hours. Orion manages all inventories using a continuous review policy and uses a holding cost of 20 percent. 1. How much safety inventory of each variant must Orion keep without component commonality? What are the annual holding costs? 2. How much safety inventory must be kept in component form if Orion uses common components for all variants? What is the annual holding cost? What is the increase in component cost using commonality? Is commonality justified across all variants? 3. At what cost of commonality will complete commonality be justified? 4. At what cost of commonality will commonality across the low-volume variants be justified? Caselet 2 An electronic manufacturer has outsourced production of its latest MP3 player to a contract manufacturer in Asia. Demand for the players has exceeded all expectations whereas the contract manufacturers sell three types of players- a 40-GB player, a 20-GB player, 6-GB player. For the upcoming holiday season, the demand forecast for the 40-GB player is normally distributed, with a mean of 20,000and a standard deviation Dard deviation of 11,000, and the demand forecast for the 6- GB player has a mean of 80,000 and a standard deviation of 16,000. The 40-GB player has a sale price of $200, a production cost of $100, and a salvage value of $80 .The 20-GB player has a price of $150, a production cost of $70, and a salvage value of $50.
  • Examination Paper of Supply Chain Management 4 IIBM Institute of Business Management 1. How many units of each type of player should the electronics manufacturer order if there are no capacity constraints? 2. How many times of each type of player should the electronics manufacturer order if the available is 140,000? What is the expected profit? END OF SECTION B Section C: Applied Theory (30 marks)  This section consists of Long Questions.  Answer all the questions.  Each question carries 15 marks.  Detailed information should form the part of your answer (Word limit 150 to 200 words). 1. Consider two products with the same margin carried by a retail store. Any leftover units of one product are worthless. Leftover units of the other product can be sold to outlet stores. Which product should have a higher level of availability? Why? 2. McMaster-Carr sells maintenance, repair, and operations equipment from five warehouses in the United States. W.W. Grainger sells products from more than 350 retail locations, supported by several warehouses. In both cases, customers place orders using the Web or on the phone. Discuss the pros and cons of the two strategies. END OF SECTION C
  • Examination Paper of Supply Chain Management 5 IIBM Institute of Business Management IIBM Institute of Business Management Examination Paper MM.100 Statistical Quality Control Section A: Objective Type (30 marks)  This section consists of Multiple choice questions & Short Answer type questions.  Answer all the questions.  Part One questions carry 1 mark each & Part Two questions carry 4 marks each. Part One: Multiple choices: 1. If in a hall there are 18 persons then how many handshakes are possible a. 18*18 b. 18*17/2 c. 18*17 d. None 2. If the number of trials be ‘n’ and the probability of occurrence be ‘p’ then the standard deviation with respect to np, is given by a. (np)1/2 b. (np(1-p))1/2 c. (np)1/4 d. (np(1-p))1/4 3. For a biased coin the probability of occurrence of head is 0.4 ,if the coin is tossed twice then the probability of occurrence of at least one head will be a. 0.76 b. 0.48 c. 0.64 d. 0.16 4. Factorial of 5 equals a. 60 b. 120 c. 24 d. 5 5. Combinatory of (4,2) equals a. 12 b. 8 c. 6 d. None 6. ‘Economic Control of Quality of Manufactured Product’, a book by Walter A Shewhart in
  • Examination Paper of Supply Chain Management 6 IIBM Institute of Business Management a. 1931 b. 1941 c. 1930 d. 1956 7. Quality is judged by………… a. Retailer b. Government c. Customer d. Hole seller 8. A run chart is a special chart of………… a. Pie chart b. Line chart c. R chart d. C chart 9. Universes may differ a. In average b. In above average c. At higher level d. All of the above 10. ASQC and ANSI began in a. 1956 b. 1976 c. 1978 d. 1960 Part Two: 1. Differentiate between ‘defect’ and ‘defective’. 2. Explain the need of ‘short method’. 3. What does ‘Tchebycheff’s inequality theorem’ say? 4. Explain the usability of ‘stochastic limit’. 5. Write a note on ‘Cause and Effect’ diagram. END OF SECTION A
  • Examination Paper of Supply Chain Management 7 IIBM Institute of Business Management Section B: Caselets (40 marks)  This section consists of Caselets.  Answer all the questions.  Each caselet carries 20 marks.  Detailed information should form the part of your answer (Word limit 200 to 250 words). Caselet 1 ADAPTABILITY IN ACTION: A CASE OF RSL Rajasthan Synthetics Ltd. (RSL) was established in the year 1994 at Bhilwara, Rajasthan to manufacture synthetic yarn with a licensed capacity of 29,000 spindles. Manish Kumar, a Harvard Business School graduate, established RSL with 8% equity participation from Itochu Corporation Japan to manufacture synthetic yarn for shirting, a promising business at that time. The demise of the NTC textile mills was fresh in the minds of the promoters and therefore, state of the art technology imported from U.K., Germany, Japan and France was used in the manufacturing facility. By the time the company started manufacturing yarn the competition in shirting yarn had become fierce and the returns had diminished. The company incurred losses in the first four years of its operations and the management was looking for opportunities to turn things around. The manufacturing plant started functioning with an installed capacity of 26,000 spindles, a small unit considering yarn- manufacturing industry, in the year 1996 to manufacture synthetic yarn for shirting only. Initially, the major fabric manufactures of India such as Raymonds, Donear, Grasim, Amartex, Siyaram, Pantaloon and Arviva were the main customers of the company and the total produce of the company was sold within the domestic market. These fabric manufactures used to import the premium quality yarn before RSL started supplying the yarn to them. The company in the first year of its operations realized that shirting yarn was one of the fiercely competitive products and the company with its high interest liability was unlikely to earn the desired profits. Also, the company had a narrow product mix limited to only two more blow room lines were installed in the first quarter of 1997. The addition of two blow room lines helped RSL to manufacture four different types of yarns at the same time. Utilizing this added flexibility, RSL began manufacturing yarn for suitings.Since the suiting yarn was providing better returns, the company was keen to increase manufacturing of suiting yarn but was hampered by the two for one doubling (TFO) facility, which was limited to only 40% of the total produce. To remove this bottleneck, 12 more TFO machines were added to the existing 8 TFO machines. The addition of these machines increased the doubling capacity to 70% of the production providing additional product mix flexibility to the company. This enabled the company to manufacture yarn to cater to the requirements of suiting, industrial fabric and carpet manufacturers. In the initial years of its operations, RSL realized that the promises made by the Government of Rajasthan to provide uninterrupted power supply of the required quality (stable voltage and frequency) and ample quantity of water were unlikely to be met through the public distribution system. The voltage and frequency of electric power provided through the public distribution system were erratic and frequent announced and unannounced power cuts stopped production on a regular basis. In these circumstances, meeting quality requirements of the customers and adhering to delivery schedules was a herculean task. To ensure smooth and uninterrupted operations RSL installed in- house power generation facility of 4 megawatts capacity and dug 10 tube-wells.RSL faced stiff competition in the domestic market from Gujarat Spinning and Weaving Mills, Surat, Rajasthan Textile Mills, Bhawani Mandi, Charan Spinning Mills, Salem and Indorama Synthetics Ltd., Pithampur in all their product categories and the returns were low. In order to combat stiff
  • Examination Paper of Supply Chain Management 8 IIBM Institute of Business Management competition in the domestic market and improve returns the company started developing export markets for their products in the year 1998. Initially, RSL started exporting carpet yarn to Belgium and till 2001; carpet yarn formed the major component of their exports. A trade agreement was signed with Fibratex Corporation, Switzerland to share profits equally for expanding their overseas operations. During the same period, RSL continued to scout for new export markets and was successful in entering top-of-the-line fancy for premium fashion fabric manufactures of international repute like Mango and Zara. Rajasthan Synthetics Ltd. also exported fancy yarn to a number of fabric manufacturers located in Italy, France, England, Spain and Portugal. Yarn manufacturers from Indonesia, Korea and Taiwan gave stiff competition to RSL when it entered the international market. The companies from South Asian countries had a major cost advantage over RSL because of cheap, uninterrupted availability of power and high labour productivity. Currencies had been sharply devalued during the South Asian financial crisis, which rendered the products manufactured by these companies still cheaper in international markets. Despite all these disadvantages, RSL was able to gain a foothold through constant adaption of their products according to the customer requirements in the highly quality conscious international yarn market and was exporting 95% of its total produce by the beginning of the year 2002. Rajasthan Synthetics Ltd. had fine-tuned its distribution channels according to the type of markets and size of orders from the customers. In line with this policy the export to Middle East, Far East and Turkey was carried out through agents. Similarly, low volume export of fancy yarn requirements was also catered through agents. While dealing with importers directly, RSL strictly followed the policy of exports against confirmed Letter of Credits only. The company directly exported to important clients in Belgium, England and France. The domestic market was also served through an agency system. Rajasthan Synthetics Ltd. considered inventories as an unnecessary waste and kept minimum possible inventories while ensuring required level of service. To ensure that the inventories were held to a minimum, the manufacturing plan consisted of 60 to 70% against customer orders, 30 to 40% against anticipated sales and 2% capacity was reserved for new product development. A Strategic Management Committee (SMC) consisting of MD, CEO, GM (marketing) and GM (technical) reviewed the production plan of the manufacturing plant on quarterly basis. The SMC also developed the plans for profitability, product mix and cost minimization. Delivering high-quality products and meeting delivery commitments for every shipment were essential pre-requisites to be successful in the global market place. The company had understood this very early and to ensure that the products manufactured by RSL met the stringent quality requirements of its international customers, the company had developed a full-fledged testing laboratory equipped with ultra modern testing machines like User Tester-3 and Classifault. The company had stringent quality testing checks at every stage of tarn production right from mixing of fiber to packing of finished cones. Its in-house Research and Development and Statistical Quality Control (SQC) divisions ensured consistent technical specifications with the help of sophisticated state-of-the-art machines. A team of professionally qualified and experienced personnel to ensure that the yarn manufactured by the company was in line with international standards backed the company. The company continuously upgraded its product mix and at the same time, new products developed by in-house research and development department were added to the product mix form time to time. RSL’s management was quick to analyze the potential of these in-house developments and followed a flexible approach in determining the level of value addition. The company had developed a new yarn recently and was selling it under the Rajtang brand name. This new yarn was stretchable in three dimensions, absorbed moisture quickly, was soft and silky and fitted the body. This yarn was extracted from natural products and being body-friendly, was in great demand in international markets. Looking at the higher value addition possibilities RSL decided to forward integrate and started manufacturing fabric, using Rajtang and provided ready-made garments like swimming suit, tracksuit, undergarments, tops, slacks and kids dresses. The ready-made dresses from the fabric were being manufactured on the specifications and designs of RSL. The management decided to market these products under the brand name “Wear-it” through Wearwell Garments Pvt. Ltd., an associate company of RSL, to ensure
  • Examination Paper of Supply Chain Management 9 IIBM Institute of Business Management that RSL did not lose its focus. The Managing Director of RSL felt that continuous adaptability to market requirements through a flexible approach, cost cutting in every sphere of operations and team approach to management had taken them ahead. However, RSL had become highly dependent on the volatile export market and if it was not able to retain the international market it would have to re- establish itself in the domestic market, which was not an easy task. 1. What marketing strategy should RSL adopt to remain competitive in the international market? 2. Has the company taken the right decision to forward integrate and enter into the highly volatile garment market? Caselet 2 Popular mythology in the United States likes to refer to pre-World War II Japan as a somewhat backward industrial power that produced and exported mostly trinkets and small items of dubious quality bought by Americans impoverished by the Great Depression. Few bring up the fact that, prior to the Pearl Harbor attack, Japan had conquered what are now Korea, Manchuria, Taiwan, and a large portion of China, Vietnam, and Thailand; and by the end of 1942 Japan had extended its empire to include Burma, the Philippines, Indonesia, Malaysia, Thailand, Cambodia, New Guinea, plus many strings of islands in the eastern Pacific Ocean. Its navy had moved a large armada of worships 4,000 miles across the Pacific Ocean, in secret and in silence, to attack Pearl Harbor and then returned safely home. Manufacturers capable of producing only low-grade goods don’t accomplish such feats. High-quality standards for military hardware, however, did not extend to civilian and export goods, which received very low priority during the war years. Thus the perception in the United States for a long time before and then immediately after the war had nothing to do with some inherent character flaw in Japanese culture or industrial capability. It had everything to do with Japan’s national priorities and the availability of funds and material. Following Japan’s surrender in 1945, General MacArthur was given the task of rebuilding the Japanese economy on a peaceful footing. As part of that effort an assessment of damage was to be conducted and a national census was planned for 1950. Deming was asked in 1947 to go to Japan and assist in that effort. As a result of his association with Shewhart and quality training, he was contacted by representatives from the Union of Japanese Scientists and Engineers (JUSE), and in 1950, Deming delivered his now famous series of lectures on quality control. His message to top industry leaders, whom he demanded to attend, and to JUSE was that Japan had to change its image in the United States and throughout the world. He declared that it could not succeed as an exporter of poor quality and argued that the tools of statistical quality control could help solve many quality problems. Having seen their country devastated by the war, industry and government leaders were eager to learn the new methods and to speed economic recovery. Experience was to prove to Deming and others that, without the understanding, respect, and support of management, no group of tools alone could sustain a long-term quality improvement effort. 1. How could have the SQC approach, been useful in solving the immediate problems of Japan? 2. If you were among one of the management members, what would have been your first insight? END OF SECTION B
  • Examination Paper of Supply Chain Management 10 IIBM Institute of Business Management Section C: Practical Problems (30 marks)  This section consists of Long Questions.  Answer all the questions.  Each question carries 15 marks. 1. A sample of 30 is to be selected from a lot of 200 articles. How many different samples are possible? 2. In Dodge’s CSP-1, it is desired to apply sampling inspection to 1 piece out of every 15 and to maintain an AOQL of 2%. What should be the value of i? END OF SECTION C S-2-301012