Q. South Carolina Furniture Inc. produces all type of office furniture. The "Executive Secretary" is a chair which has been designed utilizing ergonomics to provide comfort during long work hours. The chair sells for $130. There are 480 minutes available during the day also the average daily demand has been 50 chairs. There are 8 tasks.
Tasks Performance Time Task Must Follow Tasks Listed below
A 4 -
B 7 -
C 6 A,B
D 5 C
E 6 D
F 7 E
G 8 E
H 6 F,G
1. Draw a precedence diagram of the operation.
2. Illustrate what is the cycle time for this operation?
3. Illustrate what is the theoretical minimum number of work stations?
4. Assign tasks to work stations utilizing the longest task time heuristics (longest operating time rule).
5. Explain how much total idle time is present each day?
6. Illustrate what is the overall efficiency of the assembly line?