WGU C215 Operations Management 2026–2027 | Western
Governors University Objective Assessment (OA) Study Guide
& Exam Prep, Operations Strategy, Process Design, Capacity
Planning, Supply Chain Management, Quality Management,
Six Sigma, Lean Operations, Inventory, Forecasting,
Scheduling, Project Management & Practice Questions
Question 1: Which of the following best defines the primary focus of
operations management within an organization?
A. Managing the financial resources and investment strategies of the firm
B. Designing and controlling the processes that transform inputs into finished goods and
services
C. Developing marketing campaigns to increase brand awareness and market share
D. Recruiting, training, and retaining human capital to achieve organizational goals
CORRECT ANSWER: B. Designing and controlling the processes that transform
inputs into finished goods and services
Rationale: Operations management is the systematic design, direction, and control of
processes that transform inputs (such as labor, materials, energy, and information) into
outputs (goods and services). While finance, marketing, and human resources are
critical organizational functions, operations management specifically focuses on the
transformation process that creates value for customers. This encompasses decisions
related to process design, quality management, capacity planning, inventory control,
and supply chain management.
Question 2: A manufacturing company is evaluating its competitive priorities.
Which of the following represents a trade-off decision in operations strategy?
A. Choosing to compete on both cost and quality simultaneously without any
compromises
B. Deciding to prioritize delivery speed over customization to serve a specific market
segment
C. Implementing all competitive priorities equally to maximize overall performance
D. Eliminating all operational constraints to achieve perfect efficiency
CORRECT ANSWER: B. Deciding to prioritize delivery speed over
customization to serve a specific market segment
Rationale: Operations strategy involves making trade-off decisions because resources
are limited and different competitive priorities often require conflicting process designs.
A firm cannot excel at all competitive priorities simultaneously without significant cost
implications. Prioritizing delivery speed typically requires standardized processes and
minimal customization, while high customization demands flexible processes that may
sacrifice speed. Effective operations strategy aligns these trade-offs with the target
market's needs and the overall business strategy.
Question 3: Which capacity planning measurement indicates the maximum
output rate that can be achieved under ideal operating conditions?
,A. Effective capacity
B. Capacity utilization
C. Design capacity
D. Best operating level
CORRECT ANSWER: C. Design capacity
Rationale: Design capacity represents the maximum theoretical output rate that a facility
can achieve under ideal conditions, assuming no equipment breakdowns, no scheduling
conflicts, and perfect operating efficiency. Effective capacity, by contrast, accounts for
realistic operating constraints such as maintenance, changeovers, and normal
disruptions. Capacity utilization measures how much of the available capacity is actually
being used, while best operating level refers to the output volume that minimizes
average unit cost.
Question 4: A company produces 8,000 units per week but its design capacity
is 10,000 units per week. What is the capacity utilization?
A. 125%
B. 80%
C. 20%
D. 8,000 units
CORRECT ANSWER: B. 80%
Rationale: Capacity utilization is calculated by dividing actual output by design capacity
and multiplying by 100 to express it as a percentage. In this case, 8,000 actual units
divided by 10,000 design capacity equals 0.80, or 80%. This metric indicates that the
company is using 80% of its maximum theoretical capacity. High utilization rates may
indicate efficiency but can also lead to congestion and quality issues, while low
utilization suggests excess capacity and higher unit costs.
Question 5: Which of the following is a qualitative forecasting method that
relies on expert opinions through multiple rounds of anonymous
questionnaires?
A. Moving average
B. Exponential smoothing
C. Delphi method
D. Regression analysis
CORRECT ANSWER: C. Delphi method
Rationale: The Delphi method is a qualitative forecasting technique that gathers expert
opinions through a series of anonymous questionnaires. Responses are collected,
summarized, and redistributed to panel members for further refinement until consensus
is reached. This method is particularly useful when historical data is limited or when
forecasting new products or technologies. Moving averages, exponential smoothing, and
,regression analysis are quantitative methods that rely on numerical data and statistical
techniques.
Question 6: In a product-focused layout, which characteristic is most likely to
be observed?
A. High flexibility to produce a wide variety of customized products
B. Equipment grouped by function rather than by product flow
C. Standardized, high-volume production with a fixed sequence of operations
D. Workers with broad skills who perform multiple different tasks
CORRECT ANSWER: C. Standardized, high-volume production with a fixed
sequence of operations
Rationale: Product-focused layouts (also called line layouts or assembly lines) organize
equipment and workstations according to the sequence of operations required to
produce a specific product. This layout is designed for high-volume, standardized
production where the product flow is fixed and repetitive. Process-focused layouts, by
contrast, group similar equipment together and are suited for low-volume, high-variety
production. Product layouts achieve efficiency through specialization but sacrifice
flexibility.
Question 7: What is the primary purpose of a cause-and-effect diagram
(fishbone diagram) in quality management?
A. To display the frequency distribution of observed values in a process
B. To identify and organize potential causes of a specific quality problem
C. To monitor whether a process is operating within control limits
D. To determine the optimal sample size for acceptance sampling
CORRECT ANSWER: B. To identify and organize potential causes of a specific
quality problem
Rationale: A cause-and-effect diagram, also known as a fishbone or Ishikawa diagram, is
a quality tool used to systematically identify and organize potential causes of a specific
problem. The diagram categorizes causes into major groups such as people, methods,
materials, machines, measurement, and environment. This structured approach helps
teams brainstorm and analyze root causes rather than symptoms. Control charts
monitor process stability, histograms display frequency distributions, and acceptance
sampling determines whether to accept or reject lots.
Question 8: A company wants to implement a Just-in-Time (JIT) production
system. Which of the following is a fundamental element of JIT?
A. Maintaining large safety stock inventories to prevent stockouts
B. Using a push system where production is based on forecasts
C. Producing in small lot sizes with quick setup times
D. Maximizing machine utilization regardless of demand
CORRECT ANSWER: C. Producing in small lot sizes with quick setup times
, Rationale: Just-in-Time (JIT) production emphasizes producing only what is needed,
when it is needed, and in the amount needed. Small lot production is a fundamental
element because it reduces inventory levels, exposes inefficiencies, and enables rapid
response to customer demand. Quick setup times are essential to make small lot
production economically viable. JIT uses a pull system triggered by actual demand, not
forecasts, and prioritizes flow over maximum machine utilization.
Question 9: Which of the following best describes the concept of vertical
integration in supply chain management?
A. Outsourcing all non-core activities to third-party providers
B. The measure of how much of the supply chain is owned or controlled by the
manufacturer
C. Establishing partnerships with suppliers based on trust and shared information
D. Using electronic data interchange to communicate with trading partners
CORRECT ANSWER: B. The measure of how much of the supply chain is
owned or controlled by the manufacturer
Rationale: Vertical integration refers to the extent to which a company owns or controls
its upstream suppliers (backward integration) and downstream distribution channels
(forward integration). High vertical integration means the company performs more
supply chain activities internally, while low integration relies more on external suppliers
and distributors. This strategic decision affects control, cost structure, flexibility, and
risk. Outsourcing, supplier partnerships, and electronic data interchange are separate
supply chain strategies.
Question 10: In statistical process control, what is the difference between
common cause variation and assignable cause variation?
A. Common cause variation is caused by specific, identifiable events, while assignable
cause variation is random
B. Common cause variation is inherent in the process, while assignable cause variation is
due to special, identifiable factors
C. Common cause variation always requires immediate corrective action, while
assignable cause variation can be ignored
D. Common cause variation occurs only in manufacturing, while assignable cause
variation occurs only in services
CORRECT ANSWER: B. Common cause variation is inherent in the process,
while assignable cause variation is due to special, identifiable factors
Rationale: Common cause variation (also called random or natural variation) is inherent
in every process and results from the combined effects of many small, unidentifiable
sources. It is predictable and stable over time. Assignable cause variation (also called
special cause variation) results from specific, identifiable events such as equipment
malfunction, operator error, or defective materials. Control charts help distinguish
Governors University Objective Assessment (OA) Study Guide
& Exam Prep, Operations Strategy, Process Design, Capacity
Planning, Supply Chain Management, Quality Management,
Six Sigma, Lean Operations, Inventory, Forecasting,
Scheduling, Project Management & Practice Questions
Question 1: Which of the following best defines the primary focus of
operations management within an organization?
A. Managing the financial resources and investment strategies of the firm
B. Designing and controlling the processes that transform inputs into finished goods and
services
C. Developing marketing campaigns to increase brand awareness and market share
D. Recruiting, training, and retaining human capital to achieve organizational goals
CORRECT ANSWER: B. Designing and controlling the processes that transform
inputs into finished goods and services
Rationale: Operations management is the systematic design, direction, and control of
processes that transform inputs (such as labor, materials, energy, and information) into
outputs (goods and services). While finance, marketing, and human resources are
critical organizational functions, operations management specifically focuses on the
transformation process that creates value for customers. This encompasses decisions
related to process design, quality management, capacity planning, inventory control,
and supply chain management.
Question 2: A manufacturing company is evaluating its competitive priorities.
Which of the following represents a trade-off decision in operations strategy?
A. Choosing to compete on both cost and quality simultaneously without any
compromises
B. Deciding to prioritize delivery speed over customization to serve a specific market
segment
C. Implementing all competitive priorities equally to maximize overall performance
D. Eliminating all operational constraints to achieve perfect efficiency
CORRECT ANSWER: B. Deciding to prioritize delivery speed over
customization to serve a specific market segment
Rationale: Operations strategy involves making trade-off decisions because resources
are limited and different competitive priorities often require conflicting process designs.
A firm cannot excel at all competitive priorities simultaneously without significant cost
implications. Prioritizing delivery speed typically requires standardized processes and
minimal customization, while high customization demands flexible processes that may
sacrifice speed. Effective operations strategy aligns these trade-offs with the target
market's needs and the overall business strategy.
Question 3: Which capacity planning measurement indicates the maximum
output rate that can be achieved under ideal operating conditions?
,A. Effective capacity
B. Capacity utilization
C. Design capacity
D. Best operating level
CORRECT ANSWER: C. Design capacity
Rationale: Design capacity represents the maximum theoretical output rate that a facility
can achieve under ideal conditions, assuming no equipment breakdowns, no scheduling
conflicts, and perfect operating efficiency. Effective capacity, by contrast, accounts for
realistic operating constraints such as maintenance, changeovers, and normal
disruptions. Capacity utilization measures how much of the available capacity is actually
being used, while best operating level refers to the output volume that minimizes
average unit cost.
Question 4: A company produces 8,000 units per week but its design capacity
is 10,000 units per week. What is the capacity utilization?
A. 125%
B. 80%
C. 20%
D. 8,000 units
CORRECT ANSWER: B. 80%
Rationale: Capacity utilization is calculated by dividing actual output by design capacity
and multiplying by 100 to express it as a percentage. In this case, 8,000 actual units
divided by 10,000 design capacity equals 0.80, or 80%. This metric indicates that the
company is using 80% of its maximum theoretical capacity. High utilization rates may
indicate efficiency but can also lead to congestion and quality issues, while low
utilization suggests excess capacity and higher unit costs.
Question 5: Which of the following is a qualitative forecasting method that
relies on expert opinions through multiple rounds of anonymous
questionnaires?
A. Moving average
B. Exponential smoothing
C. Delphi method
D. Regression analysis
CORRECT ANSWER: C. Delphi method
Rationale: The Delphi method is a qualitative forecasting technique that gathers expert
opinions through a series of anonymous questionnaires. Responses are collected,
summarized, and redistributed to panel members for further refinement until consensus
is reached. This method is particularly useful when historical data is limited or when
forecasting new products or technologies. Moving averages, exponential smoothing, and
,regression analysis are quantitative methods that rely on numerical data and statistical
techniques.
Question 6: In a product-focused layout, which characteristic is most likely to
be observed?
A. High flexibility to produce a wide variety of customized products
B. Equipment grouped by function rather than by product flow
C. Standardized, high-volume production with a fixed sequence of operations
D. Workers with broad skills who perform multiple different tasks
CORRECT ANSWER: C. Standardized, high-volume production with a fixed
sequence of operations
Rationale: Product-focused layouts (also called line layouts or assembly lines) organize
equipment and workstations according to the sequence of operations required to
produce a specific product. This layout is designed for high-volume, standardized
production where the product flow is fixed and repetitive. Process-focused layouts, by
contrast, group similar equipment together and are suited for low-volume, high-variety
production. Product layouts achieve efficiency through specialization but sacrifice
flexibility.
Question 7: What is the primary purpose of a cause-and-effect diagram
(fishbone diagram) in quality management?
A. To display the frequency distribution of observed values in a process
B. To identify and organize potential causes of a specific quality problem
C. To monitor whether a process is operating within control limits
D. To determine the optimal sample size for acceptance sampling
CORRECT ANSWER: B. To identify and organize potential causes of a specific
quality problem
Rationale: A cause-and-effect diagram, also known as a fishbone or Ishikawa diagram, is
a quality tool used to systematically identify and organize potential causes of a specific
problem. The diagram categorizes causes into major groups such as people, methods,
materials, machines, measurement, and environment. This structured approach helps
teams brainstorm and analyze root causes rather than symptoms. Control charts
monitor process stability, histograms display frequency distributions, and acceptance
sampling determines whether to accept or reject lots.
Question 8: A company wants to implement a Just-in-Time (JIT) production
system. Which of the following is a fundamental element of JIT?
A. Maintaining large safety stock inventories to prevent stockouts
B. Using a push system where production is based on forecasts
C. Producing in small lot sizes with quick setup times
D. Maximizing machine utilization regardless of demand
CORRECT ANSWER: C. Producing in small lot sizes with quick setup times
, Rationale: Just-in-Time (JIT) production emphasizes producing only what is needed,
when it is needed, and in the amount needed. Small lot production is a fundamental
element because it reduces inventory levels, exposes inefficiencies, and enables rapid
response to customer demand. Quick setup times are essential to make small lot
production economically viable. JIT uses a pull system triggered by actual demand, not
forecasts, and prioritizes flow over maximum machine utilization.
Question 9: Which of the following best describes the concept of vertical
integration in supply chain management?
A. Outsourcing all non-core activities to third-party providers
B. The measure of how much of the supply chain is owned or controlled by the
manufacturer
C. Establishing partnerships with suppliers based on trust and shared information
D. Using electronic data interchange to communicate with trading partners
CORRECT ANSWER: B. The measure of how much of the supply chain is
owned or controlled by the manufacturer
Rationale: Vertical integration refers to the extent to which a company owns or controls
its upstream suppliers (backward integration) and downstream distribution channels
(forward integration). High vertical integration means the company performs more
supply chain activities internally, while low integration relies more on external suppliers
and distributors. This strategic decision affects control, cost structure, flexibility, and
risk. Outsourcing, supplier partnerships, and electronic data interchange are separate
supply chain strategies.
Question 10: In statistical process control, what is the difference between
common cause variation and assignable cause variation?
A. Common cause variation is caused by specific, identifiable events, while assignable
cause variation is random
B. Common cause variation is inherent in the process, while assignable cause variation is
due to special, identifiable factors
C. Common cause variation always requires immediate corrective action, while
assignable cause variation can be ignored
D. Common cause variation occurs only in manufacturing, while assignable cause
variation occurs only in services
CORRECT ANSWER: B. Common cause variation is inherent in the process,
while assignable cause variation is due to special, identifiable factors
Rationale: Common cause variation (also called random or natural variation) is inherent
in every process and results from the combined effects of many small, unidentifiable
sources. It is predictable and stable over time. Assignable cause variation (also called
special cause variation) results from specific, identifiable events such as equipment
malfunction, operator error, or defective materials. Control charts help distinguish
