A Company Is Designing a Product Layout for a New

question 132

Essay

A company is designing a product layout for a new product. It plans to use this production line eight hours a day in order to meet a schedule of 400 units per day. The tasks necessary to produce this product are detailed in the table below.
$\begin{array}{|c|c|c|}\hline\text { Task } & \text { Predecessor } & \begin{array}{c}\text { Time } \\\text { (seconds) }\end{array} \\\hline \mathrm{A} & - & 50 \\\hline \mathrm{B} & \mathrm{A} & 36 \\\hline \mathrm{C} & - & 26 \\\hline \mathrm{D} & - & 22 \\\hline \mathrm{E} & \mathrm{B}, \mathrm{D} & 70 \\\hline \mathrm{F} & \mathrm{C}, \mathrm{E} & 30 \\\hline\end{array}$
a. Draw the network described in the table.
b. Without regard to a production schedule, what is the minimum possible cycle time (in seconds) for this situation; what is the maximum?
c. What is the required cycle time (in seconds) in order to meet the schedule?
d. What is the theoretical minimum number of workstations needed to meet the schedule?
e. Balance this line using longest processing time.
f. What is the efficiency of the balance obtained in part e?

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Definitions:

Reduced Life Expectancy

A decrease in the average duration an individual is expected to live, often due to health complications or diseases.

Obesity

A medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health.

Communicable Disease

Illnesses caused by viruses, bacteria, or other pathogens that can be spread directly or indirectly from one person to another.

Nonsmokers

Individuals who do not engage in the activity of smoking tobacco products.