The following tasks are to be performed on an assembly line:

Task Seconds Tasks That Must Precede It A 20 –

B 7 A Task Seconds Tasks That Must Precede It C 20 B D 22 B E 15 C F 10 D G 16 E, F H 8 G The workday is seven hours long. The demand for the completed product is 750 per day. (Answers in Appendix D)

a. Find the cycle time required to produce 750 units per day.

b. What is the theoretical number of workstations?

c. Draw the precedence diagram.

d. Balance the line using sequential restrictions and the longestoperating-
time rule.

e. What is the efficiency of the line balanced as in part (d), assuming it is running at the cycle time from part (a)?

f. Suppose that demand rose from 750 to 800 units per day. What would you do? Show any amounts or calculations.
g. Suppose that demand rose from 750 to 1,000 units per day. What would you do? Show any amounts or calculations.