QUESTION # $1$

SEM $221$

Part $A$ is produced on machine $1$ and then machine $2.$ One unit of Part $A$ is assembled with three units of Part B$,$ which is produced on machine $3,$ in assembly station $4.$ Machine $1$ has a scrap factor of $20\%,$ and machine $2$ has a scrap factor of $10\%.$ The assembly process has a scrap factor of $15\%.$ Another part, Part C$,$ is produced on machine $5$ and has a scrap estimate of $25\%.$

Part $C$ and the subassembly comprising of Part A and Part B are assembled at assembly station $6$ into the completed product. Each week, $15,000$ units of the completed product are required to meet demand. Assuming that machine $3$ and assembly station $6$ have scrap factors of $30\%$ each.

Assume that assembly station $4$ has a standard time of four minutes, reliability of $95\%,$ and efficiency of $98\%.$

$($a$)$ Draw the manufacturing process.

$($b$)$ Write the following parameters for the problem?

Required Output $=$

Machine $1$ Scrap Percentage $=$

Machine $3$ Scrap Percentage $=$

Machine $5$ Scrap Percentage $=$

Machine $4$ Reliability $=$

Standard Time Machine $4=$

Machine $2$ Scrap Percentage $=$

Machine $4$ Scrap Percentage $=$

Machine $6$ Scrap Percentage $=$

Machine $4$ Efficiency $=$