B8 (a) Explain how Heijunka or production smoothing is applied in a JIT mixed-model assembly line. (10 marks) (b) Describe a typical C kanban and explain its role in a JIT manufacturing system (6 marks) (c) A feeder line that produces brackets for the final assembly line operates a two-card kanban system. Data for two linked workcentres on the feeder line for a particular part is as follows: daily demand: 300 units average waiting and moving time: 4 hours per standard container average processing time per container: 45 minutes Due to uncertainty within the process and fluctuating demand, the system has a safety stock factor of 20%. A standard container holds 20 units. Assume an 8-hour working day. Determine how many standard containers are needed to operate the system and briefly explain how WIP levels may be reduced if improvements are made to stabilise the process. (4 marks) dW+p)(1+a) Note: k =