A certain Batch manufacturing plant requires one operator to tend to 2 semiautomatic machines used in production. The plant operates one 10-hour shift per day for 250 days in a year. The operator is paid $30 per hour with applicable factory labor overhead rate of 50%. Other pertinent information about the system in include the information provided below. Determine the hourly cost of the system. Machine 1 Initial cost Installation Yearly maintenance cost SL SV ROR Applicable MOHR $125,000 $10,000 $5000 10 years $5000 20% 30% Machine 2 $150,000 $5000 $3000 8 years $10,000 20% 50%

Suppose an assembly line has a bottleneck at workstation with a processing time of 5 minutes. How much idle time would be experienced per cycle at the bottleneck?

A very special manufacturing operation is being designed as an assembly line. Table 1 shows the tasks that need to be performed, their task time, and preceding tasks. The goal is to produce 5760 products per month. The company has an operation pattern of 24 days per month with 8 hours per day.   Draw a precedence diagram. Determine the cycle time. Using the largest work element-time rule, assign tasks to the workstations in order to have appropriate line balancing. Identify the idle time for workstation 1, 2 and 6. Identify the number of workstations for the balanced line. Calculate the balanced line effieciency to 2 decimal places (Example 0.78).

Consider a line consisting of only one machine. This machine takes on average 4 minutes (te=4 min) to complete a job and Ca2=Ce2=1. The arrival rate of the parts to this machine is 1/8 part/minutes. Assume that there is enough space for only 5 parts between the machines (Hint: the buffer size, b, is 5.) Compute the expected CT of this production line. CT=_________