MCU International College • 99511 Operations Management • Quiz #2
There is a total of 29 multiple-choice problems..
1.A visual depiction of the subassemblies and components that are needed to produce and/or assemble a product is called a(n):
A)assembly time chart
B)product structure tree
2.Which one of the following most closely describes net material requirements?
A)gross requirements – amount on-hand – scheduled receipts
B)gross requirements – planned receipts
C)gross requirements – order releases + amount on-hand
D)gross requirements – planned order releases
E)gross requirements – amount on-hand + planned order releases
3.In MRP, “scheduled receipts” are:
A)identical to “planned-order receipts”
B)identical to “planned-order releases”
C)open orders (that is, ordered before the first time bucket, but not delivered yet)
E)available to promise inventory
4.In MRP, the gross requirements of a given component part are calculated from:
A)net requirements + amount on-hand.
B)gross requirements of the immediate parent
C)planned orders of the end item
D)net requirements of end item
E)planned orders of the immediate parent
5.Which of the following lot sizing methods does not attempt to balance ordering (or setup) and holding costs?
A)economic order quantity
B)economic run size
E)all of the above
6.The multiplication process used by MRP to determine lower level requirements is called:
7.Which statement concerning MRP II is false?
A)It is basically a computerized system.
B)It can handle complex planning and scheduling quickly.
C)It involves other functional areas in the production planning process.
D)It involves capacity planning.
E)It produces a production plan which includes all resources required.
8.A recent effort to expand the scope of production resource planning by involving other functional areas in the planning process has been:
A)material requirements planning
B)capacity requirements planning
C)manufacturing resources planning
E)multifunctional relationships planning
9.A report which shows expected capacity requirements for current, planned, and expected jobs is a:
A)master production schedule
B)bill of materials report
C)inventory status report
10.Which is true of a net-change system?
A)It is a batch-type system which is updated periodically.
B)It is usually run at the beginning of each month.
C)The basic production plan is modified to reflect changes as they occur.
D)It is used to authorize the execution of planned orders.
E)It indicates the amount and timing of future changes.
11.Which of the following is the last step in the capacity/scheduling chain?
12.Primary considerations in scheduling high volume systems involve:
I.coordinating the flow of inputs
II.overcoming the disruptions to planned outputs
III.assigning workers to work centers
A)I and III
B)I and II
C)II and III
D)I, II, and III
13.Finite loading, as compared to infinite loading, assumes that:
A)There are a finite number of jobs to be done.
B)Work centers can be loaded without regard to their capacity.
C)Work centers’ capacity must be taken into account.
D)Work centers’ capacity may be taken into account, but it’s not required.
E)Loading must be completed in a finite amount of time.
14.Based on the cost information given in the table below, which set of job-machine pairs reflects the minimum-cost solution using the Assignment method?
A)1-B, 2-A, 3-C
B)1-A, 2-B, 3-C
C)1-C, 2-A, 3-B
D)1-B, 2-C, 3-A
E)1-C, 2-B, 3-A
15.The priority rule where jobs are processed according to the smallest ratio of due date to processing time is:
16.Which of the following is not a measure for judging the effectiveness of a schedule sequence?
A)average number of jobs at the work center
B)total number of jobs at the work center
C)average completion (flow) time
D)average job tardiness
E)none of the above
17.Average completion (flow) time for a schedule sequence at a work center is:
A)total processing time divided by the number of jobs
B)total flow time divided by the number of jobs
C)total flow time divided by total processing time
D)total processing time plus total late time divided by number of jobs
E)total flow time plus total late time divided by number of jobs
18.The scheduling sequencing rule which always results in the lowest average completion (flow) time is the:
A)first come, first served (FCFS) rule
B)shortest processing time first (SPT) rule
C)earliest due date first (EDD) rule
D)least slack per operation first (S/O) rule
E)run until slack happens (RUSH) rule
19.For the jobs listed below, which processing sequence would result using Johnson’s Rule?
Processing time (hrs.)
JobCenter 1Center 2
20.Scheduling in service systems often takes the form of:
C)(A) and (B)
E)all of the above
Answer: C Page: 676 Difficulty: Easy
Which of the following is true about MRP Systems?
based on independent demand
lot sizing is EOQ
demand pattern is random
objective is to meet manufacturing needs
order philosophy is replenishment
Which MRP system input element specifies how many and when the firm plans to build each end item?
Inventory records file
Bills of material
Master production schedule
none of the above
The purposes of a basic MRP system include:
To control inventory levels
To prioritize the need for an item
Plan capacity to load the production system
A and B
B and C
A, B, and C
Which of the following is not an advantage of MRP?
Reduced sales price
Reduced idle time
MRP is flexible – easy to veer away from the schedule if need arises
Better response to market demand
Which of the following most closely describes net material requirements?
gross requirements – planned order receipts
gross requirements – on-hand + planned order receipts
gross requirements – on-hand – planned order receipts
gross requirements – planned order releases
none of the above
The gross requirements of a given component part in an MRP system are determined from:
net requirements + on-hand
net requirements of end item
gross requirements of the immediate part
planned order releases of the end item
planned order releases of the immediate parents
An MRP system that has information feedback from its module output is termed as open-loop MRP system.
JIT is best suited to repetitive manufacturing, whereas MRP is used in everything from custom job shops to assembly-line production.
Lot-sizing techniques include:
Economic order quantity
Least total cost
Least unit cost
A and B
A, B, and C
A, B, C, D
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