The following is a list of components required to produce one unit of end item E
ID: 452188 • Letter: T
Question
The following is a list of components required to produce one unit of end item E:
E: 2 B's, 3 J's
B: 4 J's, 2 F's
Eighty units of end item E are needed at the beginning of week 6. 30 units of F are scheduled to arrive in week 2. There are 60 units of B and 20 units of F now on hand. Lead times are two weeks for E and B, and one week for F. Prepare a material requirements plan for component F.
What is the gross requirement for E? (Fill in only number, no unit.)
What is the gross requirement for B? (Fill in only number, no unit.)
What is the net requirement for B to fill this order? (Fill in only number, no unit.)
When should an order for B be released?
How many F's should be ordered? (Fill in only number, no unit.)
When should an order for F be released?
Explanation / Answer
80 units of end item of E is required at the beginning of week 6, no inventory is there for E so the gross and net requirement of item E is 80 units
For 80 units of end item we require 2 * 80 units of B = 160 units of B (gross requirement)
As we have 60 units of B in hand therefore net requirement = 160 – 60 = 100 units of item B
Now the gross requirement for Item F = 2 * net requirement for Item B = 2 *100 = 200 unit of Item F
Net requirement of Item F = gross requirement of item F – inventory in hand
= 200 – 20 = 180 units of item F
MRP for component F
Item F, lead time=1wk
Week
1
2
3
4
5
6
gross requirement
0
180
0
0
0
0
Scheduled receipts
0
30
0
0
0
0
Projected on hand, 20
20
20
0
0
0
0
Net requirements
0
0
0
0
0
0
Planned order receipts
0
130
0
0
0
0
Planned order releases
130
0
0
0
0
0
Week
1
2
3
4
5
6
Item E order Receipt
0
0
0
0
0
80
Item E order Release
0
0
0
80
0
0
Item B order Receipt
0
0
0
100
0
0
Item B order Release
0
100
0
0
0
0
Item F order Receipt
0
130
0
0
0
Item F order Release
130
0
0
0
0
the gross requirement for E is 80 units
the gross requirement for B is 160 units
the net requirement for B to fill this order :100 Units
an order for B be released : week 2
How many F's should be ordered : 130 units
When should an order for F be released : week 1
MRP for component F
Item F, lead time=1wk
Week
1
2
3
4
5
6
gross requirement
0
180
0
0
0
0
Scheduled receipts
0
30
0
0
0
0
Projected on hand, 20
20
20
0
0
0
0
Net requirements
0
0
0
0
0
0
Planned order receipts
0
130
0
0
0
0
Planned order releases
130
0
0
0
0
0
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