Compared with a service operation, which of these statements isTRUE for a
manufacturing operation’s capacity?
A.Manufacturing is more dependent on time and location
B.manufacturing is subject to more volatile demand fluctuations
C.Utilization more directly impacts quality
D.Demand can be smoothed by inventory policies
E.Manufacturing capacity is more capable of reacting to demand fluctuations
Answer:
The weighted moving average forecasting model uses a weighting scheme to modify
the effects of individual data points. This is its major advantage over the simple moving
average model.
Answer:
The three main inputs to an MRP system are the bill of materials, the master schedule
and the inventory records file.
Answer:
One of the cost impact and payoff analysis tools from the operations consulting tool kit
is gap analysis.
Answer:
One of the advantages of a functional project organizational structure is that a team
member can work on several projects.
Answer:
In a net change MRP system requirements and schedules are updated whenever a
transaction is processed that has an impact on the item.
Answer:
Management defines time fences as periods of time having some specific Level of
opportunity for the customer to make changes.
Answer:
In a net change MRP program, a change in one item will result in a completely new
inventory plan and schedule for every item in the master production schedule.
Answer:
A tellers’ window in a bank is an example of a single channel, multiphase queuing
system.
Answer:
Initiating performance of scheduled work is commonly termed “dispatching” of orders.
Answer:
The unit improvement factor for a 60% learning curve at 25 units is 0.0933. The first
and second timings of a person doing a job are 10 minutes and 6 minutes respectively.
The learning-adjusted time estimate for the unit number 25 is 0. 9330 minutes.
Answer:
Safety stock can be defined as the amount of inventory carried in addition to the
expected demand.
Answer:
One of the features of simulation is that it allows judgment to enter into the design and
analysis of the problem.
Answer:
Specialization of labor does not appear to have serious adverse effects on workers.
Answer:
The sales and operations planning process consists of a series of meetings.
Answer:
For every forecasting problem there is one best forecasting technique.
Answer:
The number of constraints allowed in a linear program is which of the following?
A.Less than 5
B.Less than 72
C.Less than 512
D.Less than 1,024
E.Unlimited
Answer:
According to the theory of constraints which of the following can be a CCR?
A.Factory layout
B.Product design
C.An employee
D.A customer
E.Sales literature
Answer:
In the textbook Toyota’s Fujio Cho identified which of the following types of waste to
be eliminated?
A.Heijunka
B.Motion
C.Excess capacity
D.Underproduction
E.Excess demand
Answer:
Which of the following aggregate operations planning methods can handle any number
of variables, gives an optimal solution, but is difficult to formulate?
A.Linear decision rules
B.Linear programming
C.Graphing and charting
D.Simulation
E.Cut and try
Answer:
In general, which forecasting time frame best identifies seasonal effects?
A.Short-term forecasts
B.Quick-time forecasts
C.Long range forecasts
D.Medium term forecasts
E.Rapid change forecasts
Answer:
To implement a flow process in developing a lean system a firm might do which of the
following?
A.Balance workstation capacities
B.Standardize product configurations
C.Process design with product design
D.Adopt a kaizen philosophy
E.Implement top-down management controls
Answer:
In an overview of the major operations planning activities in a typical organization,
which of the following activities immediately follows aggregate sales and operations
planning in a manufacturing operation?
A.Process planning
B.Strategic capacity planning
C.Master scheduling
D.Materials requirements planning
E.Order scheduling
Answer:
You have determined the critical path in a CPM analysis. You would like to determine
the probability of completing the project is a desired period of time. One of the
activities on the critical path has an optimistic time of 5 minutes, a most likely time of 6
and a pessimistic time of 17. What is the variance estimate of this activity?
A.0.5
B.1
C.2
D.3
E.4
Answer:
Which of the following is not necessary to compute the order quantity using the
fixed-time period model with safety stock?
A.Forecast average daily demand
B.Safety stock
C.Inventory currently on hand
D.Ordering cost
E.Lead time in days
Answer:
Which of the following can be used for lot sizing in an MRP system?
A.Low-Level coding
B.Time buckets
C.Least unit cost
D.Inventory record files
E.Peg reports
Answer:
In modeling a simulation, random numbers from 00 to 99 are assigned with the
intervals determined from frequency distributions for each behavior occurrence. If there
are two behaviors, A and B, out of 100 tallies, on behavior A you record 45 tallies and
on behavior B you record 55 tallies. Which of the following is a correct random number
interval for behavior A?
A.00 to 45
B.00 to 44
C.56 to 99
D.55 to 100
E.45 to 100
Answer:
Which of the following is an input file necessary to run an MRP system?
A.Bill of materials (BOM) file
B.Quality management report
C.Exception reports
D.Planned-order schedules
E.Purchasing contracts
Answer:
Which of the following is an alternative possible service encounter included in the
service-system design matrix?
A.Face-to-face distance
B.Internet
C.Questionnaire response
D.Automated teller (ATM)
E.Response card encounter
Answer:
Assuming no safety stock, what is the re-order point (R) given an average daily demand
of 50 units, a lead time of 10 days and 625 units on hand?
A.550
B.500
C.715
D.450
E.475
Answer:
Under a contract we will receive $12,000 per year for ten years. Starting today, if we
invest this annuity each year at an interest rate of 24 percent, compounded annually,
which of the following is the value of the principal plus interest in ten years?
A.$120,000
B.$195,909
C.$212,990
D.$248,798
E.$379,721
Answer:
Why do client firms need operations consulting?
Answer:
You have run a capacity resource profile on your shop. Products have been routed
sequentially through resources A, B, C & D. The capacity resource profile tells you that
recourse A is scheduled at 95 percent of capacity, recourse B at 80% of capacity,
recourse C at 130% of capacity and recourse D at 100% of capacity. Assuming that the
data we used to calculate the capacity resource profile was reasonably accurate, what
have we discovered about the process A, B, C & D?
Answer:
If demand for product “A” were forecast at 1,000,000 units for the coming year and
your factory has one machine capable of producing 4,500 units per week, how many
similar machines might you plan to acquire?
Answer:
What two kinds of probability distributions can be used in a simulation?
Answer:
Your company is taking out a loan for $100,000. The interest rate is 10%, discounted
and a 10% compensating balance is required. What is the effective interest rate for this
loan?
Answer:
In finite queuing theory, the average waiting time in line is denoted by what symbol?
Answer:
In Hau Lee’s uncertainty framework to classify supply chains, a supply chain that
combines the strengths of a “risk-hedging” and a “responsive” supply chain is called
what?
Answer:
You want to develop a three-sigma “R” chart. You know the average range is 12 based
on several samples of size 6. Which of the following is the resulting LCL?
Answer:
In setting up a kanban control system and you need to determine the number of kanban
card sets needed. If the expected demand during lead time is 50 per hour, the safety
stock is 20% of the demand during lead time, the container size is 4. If the lead time to
replenish an order is 2 hours, what number of kanban card sets is needed?
Answer:
In the service-system design matrix, what kind of production efficiency is expected
from a service encounter designed to be “face-to-face loose specs”?
Answer: