Job shop scheduling is usually performed by skilled machine operators.
In general, the objective function for linear programming problems in operations is one
of minimizing costs.
The bullwhip effect occurs when slight to moderate demand variability becomes
magnified as demand information is transmitted back upstream.
The average outgoing quality (AOQ) is a measure of the expected number of defective
items that will pass on to the customer with the sampling plan selected.
The periodic order quantity (POQ) lot sizing technique places orders every demand
period.
Effective capacity is determined by multiplying the rated capacity by utilization and
efficiency.
When constructing a control chart for the first time, all points should be within the
control limits indicating the process is in control.
Buffer inventories provide independence between different stages of the production
process.
An enterprise resource planning (ERP) system shares information across functional
areas.
Design review involves identifying possible defects and the value added by each part or
component.
Lean production refers to high-volume production of a standardized product.
Which of the following is not one of the four primary functional areas of a firm?
a. human resources
b. legal
c. marketing
d. operations
When higher levels of output cost less per unit to produce, the facility realizes
a. best operating level.
b. capacity cushion.
c. diseconomies of scale.
d. economies of scale.
The gradual shift from treating employees as a replaceable part to embracing them as a
valuable resource was primarily brought about by the trend toward
a. globalization.
b. quality management.
c. scientific management.
d. customization.
Motion study, the study of the individual human motions used in a task, was developed
by
a. Henry Ford.
b. F. W. Taylor.
c. Frank and Lillian Gilbreth.
d. Frederick Herzberg.
All of the following can be used for underloaded conditions except
a. acquiring additional work.
b. pushing work back.
c. pulling work ahead.
d. reducing normal capacity.
The following set of jobs must be processed serially through a two-step system. The
times at each process are in hours. If Johnson’s Rule is used to sequence the jobs then
the makespan time (in hours) for all jobs is
a. 42 hours.
b. 53 hours.
c. 90 hours.
d. 95 hours.
The authority given to the worker to stop the production line if quality problems are
encountered is known as
a. kaizen.
b. jidoka.
c. poka-yoke
d. muda.
Pizazz manufactures a 5.0 oz. energy drink of the same name. Because the cans are so
small, consumers are concerned that they are not receiving the full 5 ounces in each
can. A quality engineer at the company is charged with analyzing the filling process and
ensuring accurate readings. On 15 different occasions over the past month, she has
taken a sample of 6 energy drinks off the production line and recorded their weight. If
the sum of the sample means is 80.20 ounces and the sum of the sample ranges is 12.68
ounces, what is the centerline of an R-chart for this process?
a. .50
b. .85
c. 1.20
d. 1.55
The probability that a product will perform its intended function for a specified length
of time under normal conditions is called
a. benchmarking.
b. perceptual mapping.
c. Maintainability.
d. Reliability.
The normal times for basic, generic micro motions developed by an outside
organization in a laboratory-type environment are referred to as
a. standard times.
b. normal times.
c. predetermined motion times.
d. elemental times.
Adjusting available capacity by hiring and firing workers to match demand is an
example of a(n) ________ strategy.
a. level production
b. chase demand
c. mixed production.
d. optimal production.
An optimizing technique originally developed for aggregate planning in the paint
factory is the
a. linear decision rule.
b. search decision rule.
c. management coefficients model.
d. transportation technique.
A service counter employs two servers. On average, a server requires 8 minutes to
process a customer and service times follow an exponential distribution. Customers
arrive at the counter at the rate of 12 per hour according to a Poisson distribution. On
average, the total number of customers in the system (i.e., waiting and being served)
would be
a. 1.600
b. 2.844
c. 3.200
d. 4.444
Snacknow, a food service firm, is calculating its monthly productivity report. From the
following data calculate the multifactor productivity.
a. 0.220
b. 0.476
c. 0.800
d. 1.000
Processes are analyzed for all the following reasons except
a. speed-time-to-completion.
b. for environmental considerations.
c. to increase sustainability.
d. All these answer choices are correct.
Partnerships between customers and suppliers require suppliers to provide
a) higher quality.
b) prompt delivery.
c) lower prices.
d) All of these answer choices are correct.
One disadvantage of mass production is its
a. efficiency.
b. speed of production.
c. low per-unit costs.
d. lack of responsiveness.
A product’s usage is normally distributed with a weekly average demand of 2,000 units
and a weekly standard deviation of 125. The lead time for the product is 4 weeks. If the
company would like to have a service level of 90% for this product then the reorder
point is approximately
a. 8,320 units.
b. 9,218 units.
c. 10,134 units.
d. 11,244 units.
(Use the following information for the next five problems.)
The owner of Koffi, the sole coffee house located in a resort area, wants to develop a
forecast based on the relationship between tourism and coffee drinks sold. He has
generated the following data over the past 12 months:
The data from using Data Analysis on Excel is as follows:
What is the approximate slope, b?
a. -11.6
b. 11.6
c. 6.4
d. -6.4