Question 2 (50) Answer the following question 2.1 In a 7 day week a machine works for 150 hours, its loading time. Change over's take an average of 15 hours and breakdowns an average of 10 hours every 7 days. On average the machine waits for material for 5 hours and when it runs, it averages 90% of its rated speed. 3% of what is run is defective. Calculate the OEE? (24) 2.2 The overall equipment effectiveness (OEE) measure is a method of judging the effectiveness of operations equipment. It is based on three (3) aspects of performance. Name all three aspects of performance. 2.3 Lean philosophy is often put forward as a total system. In this system the involvement of everyone is required. This principle call for basic working practices. Name and describe eight (16) (8) working practices. 2.4 Describe what is lean synchronization