OPMA CH 9
rank the following from highest to lowest level planning:
1. aggregate planning 2. master production schedule material requirements
In industry, A bill-of-material also goes by the acronym
BOM
Which of the following are sources of demand for products in a material requirements planning system?
Customer orders from sales. personnel Inter-department transactions Orders for specific components needed in repair
Which of the following is/are a part of an MRP (Materials Required Planning) record?
Gross requirements, NET requirements, and planned order receipts.
The _______________ ___________________ is kept on each item managed by the MRP system, and includes gross requirements, scheduled receipts, available balances, net requirements, planned order receipts, and order releases.
MRP Record
Which of the following is true about MRP?
MRP is an acronym used for Material Requirements Planning, MRP is used to determine the number of parts and other materials needed to produce a product.
Which of the following is/are issues a master scheduler must consider?
Never lose sight of the aggregate plan, Trade-off manufacturing, engineering and marketing conflicts, be involved with customer order promising
The file created by retracing a material requirement upward in the product structure to identify each parent item that crated the demands is called a (blank)record
PEG
The first step in the MRP explosion process is?
Retrieve the gross requirements for end items from the MPS.
Which of the following is NOT a part of the material requirements planning system?
Supplier delivery schedule
True or false: A least total cost lot sizing technique is a dynamic approach that continually looks for an optimal lot size where carrying costs and ordering costs are close to equal.
TRUE
If a company has an MRP program that can reflect the exact status of each item in real time, this program is called? A net change MRP system An item th
a net change MRP system
which of the following statements best characterizes an MRP system?
a system-driven logic that allows a company to tie the production functions together from a material planning and control view.
In which of the following product manufacturing scenarios, would MRP provide the highest benefit?
appliances, motors, trucks.
If a company has more units in the master production schedule than firm customer orders, the residual is called?
available to promise
An _______________ ________________ __________________ system is a computer system that integrates application programs from the functional areas of a firm.
enterprise, resource, planning
True or false: Finished goods purchased by individuals external to the organization are considered dependent demand items
false
A bill of materials that uses differences in alignment to indicate the order of assembly of components is using which type of structure?
indented structure
A material requirements planning system interfaces with the master production schedule, bill of materials file, and _______________ ______________ _______________.
inventory records file
At any point in time, an MRP system can reference the _________ ____________ _____________ for information concerning parts availability to help meet gross requirements.
inventory records file
When changes occur because of stock receipts and disbursements, scrap losses, wrong parts and canceled orders, the real-time file capturing these changes is called the
inventory transactions file
If an end item is quite __________ or ____________, the master production schedule may include major sub-assemblies and/or complex components.
large, expensive
The _______________ ______________ ______________ lot sizing technique is a dynamic approach that adds ordering and inventory carrying costs for each trial lot size, divides the costs by the number of units, and chooses the lot size with the lowest unit cost.
least unit cost
Setting planned orders to match the net requirements exactly is what type of lot sizing technique
lot-for-lot
A process that places all identical parts at the same level in the bills of materials simplifies computations. This process is known as __________ __________ ___________ .
low level coding
An item that can be produced and stocked as a subassembly often uses a __________________ bill of materials for planning.
modular
A _____________________ requirement is the amount needed when the projected available balance plus the scheduled receipts in a period are not sufficient to cover the _________________ requirements.
net, gross
Lot sizes are the part quantities issued in the planned order receipt and planned ___________ ____________ sections of an MRP schedule.
order release
The bill-of-material (BOM) file is also known as:
product structure file or product tree
The ultimate goal of any MRP lot sizing approach is to balance the __________________ or ________________ costs and the ___________________ costs associated with meeting the net requirements generated by the MRP planning process.
set up, order, holding
An EOQ lot sizing technique will try to minimize the sum of which of the following costs given a fairly constant demand?
setup, inventory holding
A company producing widgets only needs Part A for 40% of the widgets built. This company is likely using what type of bill of materials?
super
____________________ ___________________ are a company's attempt to provide a controlled window of opportunity to make changes to the master production schedule.
time fences
Which of the following is NOT a type of time fence described in the text?
variable
