Question: STB Sdn. Bhd. has a synchronous transfer line with 25 stations. The ideal cycle time is 0.8min. Probability of breakdown at each station is 0.02.

STB Sdn. Bhd. has a synchronous transfer line

STB Sdn. Bhd. has a synchronous transfer line with 25 stations. The ideal cycle time is 0.8min. Probability of breakdown at each station is 0.02. The expected average downtime per breakdown is 6.0min. The proposal is to divide the line into two stages. Each stage is having 10 stations, with a buffer storage zone between the stages. The storage capacity is 30 units. The operation cost for each line is RM85/hr. The storage buffer would increase the line operating cost by RM8/hr. Determine (i) line efficiency, production rate, and unit cost for the one-stage configuration. (4 marks) (ii) line efficiency, production rate, and unit cost for the two-stage configuration. (8 marks)

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