Question 1
The flow and distance data in the table below were input into a layout software program, and solved by "pairwise comparison." That solution called for assignments A-4, B-1, C-3, and D-2, with a total movement of 2430. Verify that result. Is that solution optimal? Can you offer an improved solution? What is the total movement of your alternate solution?
Flow Table | A | B | C | D | Fixed room |
| A | 0 | 5 | 8 | 3 | |
| B | 0 | 0 | 7 | 6 | |
| C | 0 | 2 | 0 | 9 | |
| D | 5 | 12 | 4 | 0 | |
| | | | | | |
| Distance Table |
Room 1 |
Room 2 |
Room 3 |
Room 4 | |
| Room 1 | 0 | 30 | 60 | 80 | |
| Room 2 | 30 | 0 | 30 | 50 | |
| Room 3 | 60 | 30 | 0 | 20 | |
| Room 4 | 80 | 50 | 20 | 0 | |
Question 2
Cyclone Appliances has developed a new European-style convection oven that will be made on an assembly line. The schedule requires 80 ovens in an 8-hour day. The assembly includes seven tasks. The table below indicates the performance time and the sequence requirements for each task.
| Task | Performance Time (minutes) | Task must follow
Task listed below |
| A | 1 | |
| B | 2 | A |
| C | 3 | B |
| D | 2 | B |
| E | 4 | C, D |
| F | 1 | E |
| G | 2 | F |
a. What is the cycle time for this assembly operation?
b. What is the theoretical minimum number of workstations?
c. Draw the precedence diagram.
European wildcat feeding its kittens, as illustrated in Brehm's Life of Animals
New England children like David, Joanna, and Abigail Mason (painted by an unknown artist around 1670
Flow aloft and cyclone migration
Case Study of a Midlatitude Cyclone
Whole-Mantle Convection
The structure of a single developed neuron