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1) When operations are often bottlenecked, additional planned idle time will improve
the throughput in those areas.
2) Avoiding bottlenecks is the primary goal of product design.
3) Approximately 99.7 percent of sample means will fall within plus or minus two
standard deviations of the process mean if the process is under control.
4) The ultimate goal of lean operations is a system characterized by the smooth, rapid
flow of materials.
5) A functioning MRP system is required prior to adopting lean planning and control
systems.
6) Basic research is done with the expectation that discoveries will have near-term
commercial application.
7) The use of a control chart assumes that errors are normally distributed about a mean
of zero.
8) Disintermediation refers to the phenomenon that the traditional retailer or service
provider is reduced or eliminated in a supply chain.
9) The use of tables and charts in aggregate planning usually enables planners to arrive
at an optimal plan.
10) Continuous production has been a significant factor underpinning the U.S. standard
of living over the last century.
11) A service blueprint is quite similar to an architectural drawing.
12) Increasing volumes result in ___________ the learning curve.
A.moving up
B.moving down
C.moving off
D.moving away from
E.stabilization of
13) The president of State University wants to forecast student enrollments for this
academic year based on the following historical data:
What is the forecast for this year using the naive approach?
A.18,750
B.19,500
C.21,000
D.22,000
E.22,800
14) A manager wants to analyze the learning curve associated with producing one of his
company's products. Accordingly, he has gathered the following data:
Approximately how long will it take to produce the fifth through tenth units?
A.15 hours
B.16 hours
C.18 hours
D.20 hours
E.21 hours
15) If there are shipping cost economies that result from bundling orders for different
items together, the __________ model becomes a relatively more attractive option.
A.multi-period
B.reorder-point
C.fixed-order-quantity
D.fixed-order-interval
E.multi-item
16) Which of the following is an example of a carryover effect?
A.capacity that was used on older products but that can be used on new products
B.previous experience that is relevant to the current scenario
C.existing products that are still in the maturity phase of their life cycle
D.forecasting errors from previous product lines
E.old supplier contracts that must still be honored
17) In graphical linear programming, when the objective function is parallel to one of
the binding constraints, then:
A.the solution is suboptimal.
B.multiple optimal solutions exist.
C.a single corner point solution exists.
D.no feasible solution exists.
E.the constraint must be changed or eliminated.
18) A methods and measurements analyst for Digital Devices needs to develop a time
standard for the task of assembling a computer mouse. In a preliminary study, she
observed one of her workers perform this task six times with the following results:
What is the normal time for this task if the employee worked at a 20 percent faster pace
than average?
A.8 seconds
B.32 seconds
C.40 seconds
D.48 seconds
E.200 seconds
19) Last quarter, a retailer sold 8,000 T-shirts, 7,000 of which were sold directly from
on-hand inventory. This retailer's ________ was 88 percent.
A.fill rate
B.inventory yield
C.profit margin
D.inventory turnover
E.working yield
20) The theoretical limit on the number of constraints that can be handled by the
simplex method in a single problem is:
A.1
B.2
C.3
D.4
E.unlimited.
21) A company is preparing a bid on a government contract for 40 units of a certain
product. The operations manager estimates the assembly time required for the first two
units to be 10.4 hours and 8.8 hours.
Approximately how long will it take to produce the 15th unit?
A.4.3 hours
B.5.5 hours
C.4.7 hours
D.6.9 hours
E.3.4 hours
22) In order for TQM to be successful, it is essential that most of the organization be:
A.members of quality circles.
B.under contract.
C.ISO certified.
D.trained in error detection techniques.
E.in agreement with the philosophy and its goals.
23) Cultural differences, customer preferences, labor, and resources are factors relating
to:
A.regional choices.
B.site selection.
C.zoning.
D.product design.
E.foreign locations.
24) ERP implementation probably will not require:
A.cross-functional teams.
B.just a few weeks to install.
C.intensive training.
D.high funding for both initial cost and maintenance.
E. frequent upgrades after installation.
25) Shortening activity durations is called:
A.expediting.
B.crashing.
C.vendor management.
D.null nodes.
E.trade-off analysis.
26) Accuracy in forecasting can be measured by:
A.MSE.
B.MRP.
C.MPS.
D.MTM.
E.MTE.
27) Concerning PERT and CPM:
A.These are two different names for essentially the same technique.
B.CPM tends to focus more on the critical path; PERT focuses on the parallel paths.
C.PERT gives a clearer indication of activity slack, while CPM gives a better picture of
path slack.
D.Because of its recent discovery, much less is known about CPM than PERT.
E.CPM is useful for project manager selection; PERT is useful for project team
selection.
28) A quality analyst wants to construct a control chart for determining whether four
machines, all producing the same product, are under control with regard to a particular
quality attribute. Accordingly, she inspected 1,000 units of output from each machine in
random samples, with the following results:
What is the sample proportion of defectives for machine #1?
A..023
B..02
C..0115
D..0058
E..005
29) Wood Specialties Company produces wall shelves, bookends, and shadow boxes. It
is necessary to plan the production schedule for next week. The wall shelves, bookends,
and shadow boxes are made of oak, of which the company has 600 board feet. A wall
shelf requires 4 board feet, bookends require 2 board feet, and a shadow box requires 3
board feet. The company has a power saw for cutting the oak boards into the
appropriate pieces; a wall shelf requires 30 minutes, bookends require 15 minutes, and a
shadow box requires 15 minutes. The power saw is expected to be available for 36
hours next week. After cutting, the pieces of work in process are hand finished in the
finishing department, which consists of 4 skilled and experienced craftsmen, each of
whom can complete any of the products. A wall shelf requires 60 minutes of finishing,
bookends require 30 minutes, and a shadow box requires 90 minutes. The finishing
department is expected to operate for 40 hours next week. Wall shelves sell for $29.95
and have a unit variable cost of $17.95; bookends sell for $11.95 and have a unit
variable cost of $4.95; a shadow box sells for $16.95 and has a unit variable cost of
$8.95.
(A) Is this a problem in maximization or minimization?
(B) What are the decision variables? Suggest symbols for them.
(C) What is the objective function?
(D) What are the constraints?
30) Acceptance sampling, when it is used, is used:
(I) before production.
(II) during production.
(III) after production.
A.I only
B.I and III only
C.I and II only
D.II and III only
E.I, II, and III
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