WGU C215 OPERATIONS MANAGEMENT
OBJECTIVE ASSESSMENT EXAM ACTUAL
QUESTIONS AND ANSWERS - LATEST AND
COMPLETE UPDATE WITH VERIFIED
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1. A manufacturing firm is deciding between a job shop and an assembly line.
Which factor most strongly supports choosing a job shop?
A. High volume and low variety
B. Low volume and high variety
C. Highly standardized outputs
D. Minimal setup times
Rationale: Job shops are best suited for low-volume, high-variety products
requiring flexibility and customization.
2. Which performance objective emphasizes minimizing the time between
order placement and customer delivery?
A. Cost
B. Quality
C. Speed
D. Flexibility
Rationale: Speed focuses on reducing throughput and delivery time to
enhance customer responsiveness.
3. A service operation measures the number of customers served per hour. This
metric is best described as:
A. Effectiveness
B. Productivity
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C. Efficiency
D. Utilization
Rationale: Productivity measures outputs relative to inputs, such as
customers served per labor hour.
4. Which forecasting method is most appropriate for long-term strategic
decisions such as facility location?
A. Moving average
B. Exponential smoothing
C. Qualitative methods (e.g., Delphi)
D. Naïve forecast
Rationale: Long-term forecasts often rely on expert judgment and
qualitative inputs due to higher uncertainty.
5. In capacity planning, a capacity cushion is primarily used to:
A. Reduce fixed costs
B. Handle demand variability and uncertainty
C. Eliminate bottlenecks
D. Increase utilization to 100%
Rationale: A capacity cushion provides slack to absorb demand
fluctuations and protect service levels.
6. Which layout is most appropriate for a hospital emergency department?
A. Product layout
B. Fixed-position layout
C. Process (functional) layout
D. Cellular layout
Rationale: Process layouts group similar resources, supporting varied
patient needs and flows.
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7. The critical path in a project network represents:
A. The path with the fewest activities
B. The longest path determining project duration
C. The least costly path
D. Activities with the most slack
Rationale: The critical path has zero slack and determines the minimum
project completion time.
8. Which inventory cost increases as order quantity increases?
A. Ordering cost
B. Holding (carrying) cost
C. Stockout cost
D. Setup cost
Rationale: Holding costs rise with larger average inventory levels.
9. A firm implementing Just-In-Time (JIT) should expect which operational
change first?
A. Larger batch sizes
B. Increased safety stock
C. Reduced setup times
D. More complex scheduling
Rationale: JIT requires small lot sizes, which depend on reduced setup
times.
10.Which quality tool is used to identify the most significant causes of defects?
A. Control chart
B. Flowchart
C. Pareto chart
D. Histogram
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Rationale: Pareto charts apply the 80/20 principle to focus on the most
impactful defect causes.
11.A process has an upper control limit and lower control limit. These limits are
used to:
A. Define customer specifications
B. Monitor process stability
C. Set production targets
D. Measure productivity
Rationale: Control limits assess whether a process is in statistical control.
12.Six Sigma’s primary goal is to:
A. Increase speed
B. Reduce variation and defects
C. Improve employee morale
D. Maximize utilization
Rationale: Six Sigma targets near-zero defects by minimizing process
variation.
13.Which scheduling rule minimizes average flow time?
A. First-come, first-served
B. Shortest processing time
C. Earliest due date
D. Longest processing time
Rationale: Shortest processing time reduces work-in-process and average
completion time.
14.In aggregate planning, which strategy varies workforce size to match
demand?
A. Level strategy
B. Chase strategy