problems chp 12

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

Item

Lead Time

Amount
on Hand

Direct Components

End

1

−

L(2), C(1), K(3)

L

2

10

B(2), J(3)

C

3

15

G(2), B(2)

K

3

20

H(4), B(2)

B

2

30

J

3

30

G

3

5

H

2

−

a.

If 44 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.)

  Additional units

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b.

An order for the end item is scheduled to be shipped at the start of week 9. 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.)

  The latest week

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Assume that you are the manager of a shop that assembles power tools. You have just received an order for 54 chain saws, which are to be shipped at the start of week 8. Pertinent information on the saws is

Item

Lead Time (weeks)

On Hand

    Components

Saw

2

15      

  A(2), B(1), C(4)

A

1

10      

  E(3), D(1)

B

2

5      

  D(2), F(3)

C

2

65      

  E(2), D(2)

D

1

20      

E

1

10      

F

2

30      

b.

Develop the material requirements plan for component E using lot-for-lot ordering. (Leave no cells blank - be certain to enter "0" wherever required.)

  Item: E(3) & E(2) LT = 1 wk.

      Beg. Inv.

       1

     2

     3

     4

     5

    6

    7

    8

  Gross requirements

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  Scheduled receipts

  Projected on hand

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  Net requirements

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  Planned order receipt

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  Planned order release

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