Question $3$

a$)$ When is it appropriate to use material requirements planning $($MRP$)?$

$6$ marks

b$)$ What is the master production schedule $($MPS$)$ and what role does it play in

the material requirements planning $($MRP$)$ process? $6$ marks

c$)$ Briefly describe the outputs of MRP and how they are used. $6$ marks

d$)$ Given the following MRP matrix for Item D:

ITEM: D

Lot Size: L$4$L LT: $2$

Period

$1234567$

Gross Requirements $6090150150180270120$

Schedule Receipts $150$

Project on Hand $120$

Net Requirements

Planned Order Receipts

Planned Order Releases

What would the planned order release for periods $2,3,4,$ and $5$ be$?$

$[$Note: Just write the numbers for each period in your answer book $$

You don$$t need to transcribe the complete table.$]$

$12$ marks