Exam 12: Managing Production Across the Supply Chain

If a job has a negative critical ratio then it must be early.

Throughout every MRP record,ending inventory is equal to the ending inventory from the previous period,plus the master production schedule quantity,minus the orders booked for that period.

A mechanical cat is made of two front leg assemblies,a body assembly,one tail,one head assembly,and two back leg assemblies.Each head assembly has two eyes,one nose,one mouth,and 24 whiskers.Each back leg assembly has one foot,five claws,one each fibula,tibia,and femur.The cat production company runs a lot for lot system on everything except the heads,which they order in cases of 24,and the whiskers,which come in boxes of 1000.Lead time for assembly and shipping is shown in the table.Use the master production schedule for mechanical cats to complete the MRP record.What's the planned order release for whiskers in week 2?

What is the average lateness of these seven jobs if they are scheduled using the critical ratio criterion?

Consider the product structure tree shown below: With a beginning inventory of zero for all components and finished items,how many assembly A's are needed to produce 25 product X's?

Which step comes first in sales and operations planning?

What are the third,fourth,and fifth jobs in a critical ratio sequence?

A deluxe model mechanical cat is made of two front leg assemblies,a body assembly,one tail,two head assemblies,and two back leg assemblies.Each head assembly has two eyes,one nose,one mouth,and 24 whiskers.Each back leg assembly has one foot,five claws,one each fibula,tibia,and femur.The cat production company runs a lot for lot system on everything except the heads,which they order in cases of 250,and the whiskers,which come in boxes of 600.Lead time for assembly and shipping is shown in the table.Use the master production schedule for mechanical cats to complete the MRP record.What is the planned order release for whiskers in week 2?

A deluxe model mechanical cat is made of two front leg assemblies,a body assembly,one tail,two head assemblies,and two back leg assemblies.Each head assembly has two eyes,one nose,one mouth,and 24 whiskers.Each back leg assembly has one foot,five claws,one each fibula,tibia,and femur.The cat production company runs a lot for lot system on everything except the heads,which they order in cases of 125,and the whiskers,which come in boxes of 333.Lead time for assembly and shipping is shown in the table.Use the master production schedule for mechanical cats to complete the MRP record.What is the planned order release for whiskers in week 1?

Material requirements planning is performed at greater level of detail than master scheduling.

A mechanical cat is made of two front leg assemblies,a body assembly,one tail,one head assembly,and two back leg assemblies.Each head assembly has two eyes,one nose,one mouth,and 24 whiskers.Each back leg assembly has one foot,five claws,one each fibula,tibia,and femur.The cat production company runs a lot for lot system on everything except the legs,which they order in cases of 50,and the claws,which come by the gross.Lead time for assembly and shipping is shown in the table.Use the master production schedule for mechanical cats to complete the MRP record.What's the planned order release for claws in week 2?

The table shows a master schedule for end item Z that is produced according to the product structure tree shown below.Beginning inventories and lead times for components of Z are given in the table.The lot sizes for A,B,and C are 100 units.Complete a materials requirement plan for components A,B,and C.

Forecasts in a company using a distribution requirements planning system are typically based on:

Confirmed demand for products is called ________ in master scheduling.

Given the forecast and booked orders shown in the table,and a beginning inventory of 20,what is the available to promise inventory for the first period? There are no LOT quantity constraints.

Gross requirements in an MRP record can be met by inventory from previous weeks,scheduled receipts,or planned receipts.

RFID tags can be used to trace the movement and location of materials.

There are 200 units in inventory at the start of week 1.What are the net requirements in week 4 if there is a scheduled receipt of 100 units every other week and a two week production lead time?

Distribution requirements planning is identical to material requirements planning except instead of gross requirements,a DRP record shows forecasted demand.

Using the information in the table,determine a schedule for these five jobs using the critical ratio sequence.