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CHAPTER 5

2. Melissa’s Photo Studio offers both individual and group portrait options. The process flow diagram in Figure 5.10 shows that all customers must first register and then pay at one of two cashiers. Then, depending on whether they want a single or group portrait they go to different rooms. Finally, everyone picks up their own finished portrait.

a. How long does it take to complete the entire process for a group portrait?

b. What single activity is the bottleneck for the entire process, assuming the process receives equal amounts of both groups and individuals?

c. What is the capacity of the bottleneck for both groups and individuals?

CHAPTER 6

3. The Farm-4-Less tractor company produces a grain combine (GC) in addition to both a large (LT) and small size tractor (SM). Its production manager desires to produce to customer demand using a mixed-model production line. The current sequence of production, which is repeated 30 times during a shift, is SM-GC-SM-LT-SM-GC-LT-SM. A new machine is produced every 2 minutes. The plant operates two 8-hour shifts. There is no downtime because the 4 hours between each shift are dedicated to maintenance and restocking raw material. Based on this information, answer the following questions.

a. How long does it take the production cycle to be completed?

b. How many of each type of machine does Farm-4-Less produce in a shift?