WGU C215 OA Operations Management
exam Questions and Answers
With rationales 2026\2027 update
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Questions and Ansẉers
format set of multiple-choice
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What is the primary goal of operations management?
A) To maximize customer awareness
B) To transform inputs into outputs in the most efficient and
effective way
C) To handle human resources and employee relations exclusively
D) To manage the financial portfolios of the company
Answer: B
Rationale: Operations management (OM) focuses on managing the
process that converts inputs (materials, labor, energy) into outputs
(goods and services). While HR and finance intersect with OM, the
core definition is the transformation process.
A company produces 500 widgets using 100 labor hours, 20 units
of raw materials, and $500 of overhead. If labor costs $15 per hour
and raw materials cost $10 per unit, what is the multifactor
productivity?
A) 500 / (1500 + 200 + 500) = 0.22
B) = 5.00
C) 500 / (1500 + 200) = 0.29
D) = 0.23
Answer: A
Rationale: Multifactor productivity includes all relevant inputs. Labor
cost = 100 * $15 = $1,500. Material cost = 20 * $10 = $200.
Overhead = $500. Total input cost = $2,200. = 0.227
(rounded to 0.22).
Which of the following is NOT one of the 10 strategic OM decisions?
A) Layout strategy
B) Quality management
C) Marketing strategy
D) Supply chain management
Answer: C
,Rationale: The 10 OM decisions are: Design of goods and services,
Quality management, Process and capacity strategy, Location
strategy, Layout strategy, Human resources and job design, Supply
chain management, Inventory management, Scheduling, and
Maintenance. Marketing strategy falls under marketing, not
operations.
A differentiation strategy in operations management focuses on:
A) Offering the lowest possible cost
B) Providing unique, superior products or services
C) Targeting a very narrow niche market
D) Producing standardized goods at high volume
Answer: B
Rationale: Differentiation focuses on uniqueness and superior value
to command a premium price. Cost leadership focuses on low cost,
and focus strategy targets a niche.
Which of the following represents a "discrete" product?
A) Gasoline
B) Paint
C) A smartphone
D) Electricity
Answer: C
Rationale: Discrete products are distinct, countable items like
smartphones or cars. Continuous products are flows like gasoline,
paint, or electricity.
In forecasting, what does a "naive approach" assume?
A) Future demand will be exactly the same as the most recent
period's demand
B) Future demand is an average of all historical data
C) Demand follows a perfectly linear trend
D) Seasonal variations will cancel out over time
Answer: A
Rationale: The naive forecast simply uses the actual demand from
the previous period as the forecast for the next period.
A moving average forecast is most useful for:
, A) Predicting cyclical demand patterns
B) Smoothing out random fluctuations in demand
C) Identifying seasonal trends precisely
D) Long-term strategic forecasting
Answer: B
Rationale: Moving averages average a specific number of recent
periods to smooth out short-term fluctuations, though it lags behind
actual trends.
If a forecaster wants to place more weight on recent demand data
rather than older data, which method should they use?
A) Simple moving average
B) Weighted moving average or Exponential smoothing
C) Naive approach
D) Linear regression
Answer: B
Rationale: Both weighted moving average and exponential
smoothing allow the forecaster to assign higher weights to more
recent data points, making them more responsive to changes.
In exponential smoothing, if the smoothing constant (alpha) is set to
1.0, what is the result?
A) The forecast is a simple average of all data
B) The forecast becomes the naive forecast
C) The forecast completely ignores all historical data
D) The forecast is equivalent to a linear trend line
Answer: B
Rationale: The exponential smoothing formula is F(t+1) = α(Actual) +
(1-α)(Previous Forecast). If α = 1, then F(t+1) = 1(Actual) + 0(Previous
Forecast) = Actual. This is exactly the naive approach.
Mean Absolute Deviation (MAD) is used to:
A) Measure the average percentage error in a forecast
B) Measure the total sum of forecast errors
C) Measure the average absolute magnitude of forecast errors
D) Indicate whether a forecast is biased high or low
Answer: C
exam Questions and Answers
With rationales 2026\2027 update
This Exam contains:
Guarantee passing score
Questions and Ansẉers
format set of multiple-choice
Expert-Verified rationales
Verified ẉith trusted textbooks
,───────────────────────────────────────────────────────
─
What is the primary goal of operations management?
A) To maximize customer awareness
B) To transform inputs into outputs in the most efficient and
effective way
C) To handle human resources and employee relations exclusively
D) To manage the financial portfolios of the company
Answer: B
Rationale: Operations management (OM) focuses on managing the
process that converts inputs (materials, labor, energy) into outputs
(goods and services). While HR and finance intersect with OM, the
core definition is the transformation process.
A company produces 500 widgets using 100 labor hours, 20 units
of raw materials, and $500 of overhead. If labor costs $15 per hour
and raw materials cost $10 per unit, what is the multifactor
productivity?
A) 500 / (1500 + 200 + 500) = 0.22
B) = 5.00
C) 500 / (1500 + 200) = 0.29
D) = 0.23
Answer: A
Rationale: Multifactor productivity includes all relevant inputs. Labor
cost = 100 * $15 = $1,500. Material cost = 20 * $10 = $200.
Overhead = $500. Total input cost = $2,200. = 0.227
(rounded to 0.22).
Which of the following is NOT one of the 10 strategic OM decisions?
A) Layout strategy
B) Quality management
C) Marketing strategy
D) Supply chain management
Answer: C
,Rationale: The 10 OM decisions are: Design of goods and services,
Quality management, Process and capacity strategy, Location
strategy, Layout strategy, Human resources and job design, Supply
chain management, Inventory management, Scheduling, and
Maintenance. Marketing strategy falls under marketing, not
operations.
A differentiation strategy in operations management focuses on:
A) Offering the lowest possible cost
B) Providing unique, superior products or services
C) Targeting a very narrow niche market
D) Producing standardized goods at high volume
Answer: B
Rationale: Differentiation focuses on uniqueness and superior value
to command a premium price. Cost leadership focuses on low cost,
and focus strategy targets a niche.
Which of the following represents a "discrete" product?
A) Gasoline
B) Paint
C) A smartphone
D) Electricity
Answer: C
Rationale: Discrete products are distinct, countable items like
smartphones or cars. Continuous products are flows like gasoline,
paint, or electricity.
In forecasting, what does a "naive approach" assume?
A) Future demand will be exactly the same as the most recent
period's demand
B) Future demand is an average of all historical data
C) Demand follows a perfectly linear trend
D) Seasonal variations will cancel out over time
Answer: A
Rationale: The naive forecast simply uses the actual demand from
the previous period as the forecast for the next period.
A moving average forecast is most useful for:
, A) Predicting cyclical demand patterns
B) Smoothing out random fluctuations in demand
C) Identifying seasonal trends precisely
D) Long-term strategic forecasting
Answer: B
Rationale: Moving averages average a specific number of recent
periods to smooth out short-term fluctuations, though it lags behind
actual trends.
If a forecaster wants to place more weight on recent demand data
rather than older data, which method should they use?
A) Simple moving average
B) Weighted moving average or Exponential smoothing
C) Naive approach
D) Linear regression
Answer: B
Rationale: Both weighted moving average and exponential
smoothing allow the forecaster to assign higher weights to more
recent data points, making them more responsive to changes.
In exponential smoothing, if the smoothing constant (alpha) is set to
1.0, what is the result?
A) The forecast is a simple average of all data
B) The forecast becomes the naive forecast
C) The forecast completely ignores all historical data
D) The forecast is equivalent to a linear trend line
Answer: B
Rationale: The exponential smoothing formula is F(t+1) = α(Actual) +
(1-α)(Previous Forecast). If α = 1, then F(t+1) = 1(Actual) + 0(Previous
Forecast) = Actual. This is exactly the naive approach.
Mean Absolute Deviation (MAD) is used to:
A) Measure the average percentage error in a forecast
B) Measure the total sum of forecast errors
C) Measure the average absolute magnitude of forecast errors
D) Indicate whether a forecast is biased high or low
Answer: C
