Problem 2 - 20 Marks

In a typical factory production line, a product is being manufactured with a daily demand of 135 units. The work on this line is 18 hrs/day. The tasks that should be carried out are shown in the following table (all durations are in min):

Task	Precedence	Duration
A	-	5
B	-	5
C	A, B	4
D	C	1
E	C	1
F	D	1
G	D, E	2
H	G	1
I	H	1

1. Create/complete the precedence diagram. (4 marks)
2. Determine the Takt Time, the minimum number of work cells required and the total idle time. (2 marks)
3. Balance the line to minimize the number of workstations according to the Individual duration heuristic scheduling rule. Show the cycle time and idle time for each workstation as well as the totals (6 marks)
4. Make an outline of the cell layout indicating what tasks will be carried out in each station. (3 marks)
5. Is it possible to achieve the min theoretical number of workstations? If yes, please show how. If No, please explain why? (2 Marks)
6. Due to some Labor laws disputes, the cell now will be available to run only 12 hrs per day. Will they be able to meet customer demand? Ensure your answer to this question includes quantitative data. (3 Marks)