QUESTION 5 (15\%): Elite Industries Ltd, situated at the heart of the Ikeja industrial estate, is a major manufacturer of electronic products. The demand for subassembly S (a major subassembly of rechargeable fan) is very high. Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 1 unit of V and 2 units of W. One firm manufactures all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U,2 weeks to make V, 3 weeks to make W. a) Construct a product structure (that is, BOM diagram). Identify all levels, parents, and components. b) Prepare a time-phased product structure. c) Identify five specific requirements of an effective MRP system. d) What are some of the benefits of MRP? e) What are the essential differences of planning production in a pure service and a typical manufacturing organization? QUESTION 6(15%) : John Doe has just founded Pizza-Ready Ltd. (PRL), which will accept pizza orders for pickup over the phone. PRL's strategy is to compete with established pizza restaurants by offering superior, fresh, made-to-order deep-dish pizza and excellent service. As part of his advertising campaign, Doe will publish an advert stating, 'If your pizza is not ready in 20 minutes, that pizza plus your next order are on us.' Doe has done extensive research on the pizza-cooking process and knows that all fresh deep-dish pizzas require 15 minutes of oven time and 2 minutes of preparation. Moreover, as part of its excellent service, PRL will accept orders whenever customers place them. A marketing study estimates that although demand for pizza is random, PRL can count on an average demand of 20 pizzas per hour. Doe, therefore, has ordered five pizza ovens, each of which is able to bake one pizza at a time. Doe is now looking for a silent partner to help carry the financial burden of his start-up company. Given the structure of this business, a potential partner has asked you whether PRL would be a profitable investment. What would you recommend