The following table lists the components needed to assemble an end item, lead times $($in weeks$),$ and quantities on hand.Chapter Thirteen MRP and ERP

The following table lists the components needed to assemble an end item, lead times $($in weeks$),$

and quantities on hand.

a$.$ If $40$ units of the end item are to be assembled, how many additional units of $B$ are needed?

$($Hint: You don't need to develop an MRP plan.$)$

b$.$ An order for the end item is scheduled to be shipped at the start of week $8.$ What is the latest

week that the order can be started and still be ready to ship on time? $($Hint: You don't need to

develop an MRP plan.$)$

Eighty units of end item $E$ are needed at the beginning of week $6.$ Three cases $(30$ units per case$)$ of $J$

have been ordered and one case is scheduled to arrive in week $3,$ one in week $4,$ and one in week $5.$

Note: $J$ must be ordered by the case, and $B$ must be produced in multiples of $120$ units. There are $60$ units

of B and $20$ units of $J$ now on hand. Lead times are two weeks each for E and B$,$ and one week for J$.$

a$.$ Prepare a material requirements plan for component $J.$

b$.$ Suppose that in week $4$ the quantity of $E$ needed is changed from $80$ to $70.$ The planned$-$order releases

through week $3$ have all been executed. How many more Bs and Js will be on hand in week $6?$

a$.$ One hundred twenty units of end item $Z$ are needed at the beginning of week $7.$ Prepare a mate$-$

rial requirements plan for component $C.$ Take into account that on hand there are $40$ units of $Z,$

$70$ units of A$,100$ units of B$,$ 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 com$-$

ponents. Lot$-$for$-$lot ordering will be used for all items.

b$.$ Ninety$-$five units of end item E are needed at the beginning of week $7.$ Prepare a material require$-$

ments 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 are

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.