Facility Layout: Workstation
Not what you're looking for?
7. An assembly line is to be designed to operate 7 1/2 hours per day and supply a steady demand of 300 units per day. Here are the tasks and their performance times:
TASK PRECEDING PERFORMANCE TASK PRECEDING PERFORMANCE
TASKS TIME(SECONDS) TASKS TIME(SECONDS)
a 70 g d 60
b 40 h e 50
c 45 i f 15
d a 10 j g 25
e b 30 k h, i 20
f c 20 l j, k 25
a. Draw the precedence diagram.
b. What is the workstation cycle time?
c. What is the theoretical minimum number of workstations?
d. Assign tasks to workstations using the longest operating time.
e. What is the efficiency of your line balance?
f. Suppose demand increases by 10 percent. How would you react to this? Assume that you can operate only 7 1/2 hours per day.
______________________________________________________________
11. The flow of materials through eight departments is shown in the table below. Even though the table shows flows into and out of the different departments, assume that the direction of flow is not important. In addition, assume that the cost of moving material depends only on the distance moved.
DEPARTMENTS
1 2 3 4 5 6 7 8
1 20
2 15 25 4
3 5 40 5
4 5 10
5 1 20 30
6 20
7 3 10
8 5
a. Help construct a schematic layout where the departments are arranged on a 2 ? 4 grid with each cell representing a 10 ? 10-meter square area.
b. Evaluate your layout using a distance-times-flow measure. Assume that distance is measured rectilinearly (in this case, departments that are directly adjacent are 10 meters apart and those that are diagonal to one another are 20 meters apart).
Purchase this Solution
Solution Summary
The solution discusses questions regarding to an assembly line being designed.
Purchase this Solution
Free BrainMass Quizzes
SWOT
This quiz will test your understanding of the SWOT analysis, including terms, concepts, uses, advantages, and process.
Social Media: Pinterest
This quiz introduces basic concepts of Pinterest social media
Lean your Process
This quiz will help you understand the basic concepts of Lean.
Basic Social Media Concepts
The quiz will test your knowledge on basic social media concepts.
Six Sigma for Process Improvement
A high level understanding of Six Sigma and what it is all about. This just gives you a glimpse of Six Sigma which entails more in-depth knowledge of processes and techniques.