We produce finished product A, using components Q, R and S, and raw materials X and Y, as shown in the following Bill of Materials (BOM):

The Master Production Schedule (MPS) shows the plan is to begin production of A in the following quantity each week:

Week:

1

2

3

4

5

6

7

8

MPS

55

35

25

40

80

45

65

30

Use this information to answer all of the questions on this page.

1-1. The scheduled receipt for item Q is 120 on week 1, as shown below. Fill in the appropriate gross requirements for Q based on the BOM and the MPS of product A shown above, and complete the remaining MRP table.

Item Q

On Hand:

90

LT =

1 week

Safety Stock:

10

Lotsize:

POQ = 2 weeks

Week:

1

2

3

4

5

6

7

8

Gross Requirements

Scheduled Receipts

120

Projected On Hand

Net Requirement

Planned Receipt

Planned Release

Continued on next page

1-2. The scheduled receipt for item X is 450 on week 1, which is 20 less than the fixed order quantity (FOQ) of 650, as shown below. Fill in the appropriate gross requirements for X based on the BOM shown above and the MRP table of item Q you've worked in the previous problem, and complete the remaining MRP table.

Item X

On Hand:

165

LT =

2 week

Safety Stock:

150

Lotsize:

FOQ =

650

Week:

1

2

3

4

5

6

7

8

Gross Requirements

Scheduled Receipts

450

Projected On Hand

Net Requirement

Planned Receipt

Planned Release

2. Find the ES, EF, LS, LF, and slack time for each activity in the project shown below:

Activity

Immediate Predecessors

Duration

A

-----

5

B

A

6

C

A

3

D

B

3

E

B, C

4

F

C

4

G

D, E, F

3

Activity

ES

EF

LS

LF

Slack

A

B

C

D

E

F

G