Question 1) a. Given the following diagram for a product, determine the quantity of each component request to assemble one unit of the finished product.
b. Draw a tree diagram for a stapler given the following bill of materials:
| Item |
Components |
| Stapler |
Top assembly, base assembly |
| Top assembly |
Cover, spring, slide assembly |
| Cover |
|
| Spring |
|
| Slide assembly |
Slide, spring |
| Slide |
|
| Spring |
|
| Base asembly |
Base, strike plate, rubber pad(2) |
| Base |
|
| Strike plate |
|
| Rubber pad (2) |
|
Question 2) a. One hundred twenty units of end item Z arc needed at the beginning of week 7. Prepare a material requirements plan for component C. Take into account that on hand there are 40 units of 70 units of A, 100 units of R. and 30 units of C. Also, there is a scheduled receipt of 20 units of component C in week 4. Lead times are two weeks for Z and B. and one week for the other components. Lot-for-lot ordering will be used for all items.
b. Ninety-five units of end item E arc needed at the beginning of week 7. Prepare a material requirements plan for component D. Take into account that 5 units of E are currently on hand, as well as 50 units of B, 100 units of C, and 80 units of D. Also, 30 units of C have been outsourced and arc expected to arrive in week 4. Lead times are two weeks for E and C. and one week for the other components. Assume lot-for-lot ordering except for D. where multiples of 40 must be used.
Question 3) A firm that produces electric golf carts has just received an order for 200 cans, which must be ready for delivery at the start of week 8. Information concerning the product structure, lead times, and quantities on hand is shown in the following table. Use this information to do each of the following.
a. Construct a product tree.
b. Construct an assembly time chart.
c. Develop a material requirements plan that will provide 200 golf carts by week 8 assuming lot-for-lot ordering.
| Parts List for Electric Golf Cart |
Lead Time |
Quantity on Hand |
| Electric golf cart |
1 |
0 |
| Top |
1 |
40 |
| Supports (4) |
1 |
200 |
| Cover |
1 |
0 |
| Base |
1 |
20 |
| Motor |
2 |
300 |
| Body |
3 |
50 |
| Frame |
1 |
35 |
| Controls |
1 |
0 |
| Wheel assembles (4) |
1 |
240 |
| Seats (2) |
2 |
120 |
Question 4) Refer to Question 3. Assume that unusually mild weather has caused a change in the quantity and timing of orders for golf carts. The revised plan calls for 100 golf carts at the start of week 6.100 at the start of week 8, and 100 at the start of week 9.
a. Develop a master schedule for this revised plan.
b. Determine the timing and quantities for orders for tops and bases.
c. Assume that equipment problems reduce the firm's capacity for assembling bases to 50 units per week. Revise your material plan for bases to reflect this, but still meet delivery dates.
Attachment:- Data.rar