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WGU C215 Operations Management OA Exam 2026 – 300 Practice Questions with Verified Answers & Rationales (Objective Assessment Test Bank

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Ace the WGU C215 Operations Management Objective Assessment (OA) with this comprehensive test bank containing 300 practice questions – each with a verified answer and a detailed rationale that explains the operations management concepts, formulas, and decision models behind every correct choice. Fully aligned with the WGU C215 course curriculum for the 2026 assessment cycle, this resource covers every major topic tested on the proctored objective exam. What’s inside? Total Quality Management (TQM) (Deming’s 14 Points, Juran, Crosby, Feigenbaum, ISO 9000/14000, quality gurus, PDSA cycle) Six Sigma & DMAIC (DMAIC phases, belt levels (Green/Black/Master), process capability (Cp, Cpk), control charts (X-bar, R, p, c), Pareto analysis, cause and effect diagrams, histograms, scatter diagrams, flowcharts) Process Strategy & Capacity Planning (design capacity, effective capacity, utilization, efficiency, bottleneck, theory of constraints, process types (project, batch, line, continuous), facility layout (process, product, cellular, fixed position)) Supply Chain Management & Just In Time (JIT) (push vs. pull systems, Kanban, JIT elements, supplier partnerships, outsourcing, offshoring, bullwhip effect, VMI, CPFR) Forecasting & Demand Management (qualitative vs. quantitative, moving average, exponential smoothing, naive forecast, MAD, tracking signal, bias, seasonal indices, time series components, Delphi method) Inventory Management (EOQ model, reorder point (ROP), safety stock, ABC analysis, fixed order quantity vs. fixed time period systems, holding cost, ordering cost, newsvendor model (critical ratio), cycle counting) Project Management (work breakdown structure (WBS), Gantt charts, PERT/CPM, critical path, slack/float, crashing, earned value management (EVM – CPI, SPI, EAC), resource leveling, milestones) Lean Manufacturing & Continuous Improvement (seven wastes (muda), 5S, Kaizen, value stream mapping, SMED, poka yoke, andon, Heijunka, takt time, OEE, Gemba, one piece flow, Jidoka) Statistical Process Control (SPC) (common vs. special cause variation, control limits vs. specification limits, process control charts, run tests, Cpk interpretation) Why this resource works: Every answer is directly supported by a rationale – learn the “why” behind correct answers and common mistakes. Covers every competency assessed on the WGU C215 OA, including formulas (EOQ, PERT, EVM, Cpk) and scenario based decision making. Perfect for self testing, spaced repetition, or last minute review before your proctored Objective Assessment. Ideal for: WGU students enrolled in C215 Operations Management, as well as anyone preparing for operations management exams (APICS, CPIM, or university courses) needing practice with TQM, Six Sigma, lean, supply chain, forecasting, inventory, and project management

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WGU C215 Operations Management OA
Exam 2026 – 300 +Practice Questions
with Verified Answers & Rationales
(Objective Assessment Test Bank)
Welcome to this comprehensive exam review for WGU C215:
Operations Management. This resource is designed to mirror the actual
2026 Objective Assessment (OA) and Performance Assessment (PA)
content. Each question includes a detailed rationale to deepen your
understanding and ensure you are fully prepared for success on your first
attempt.


PART I: TOTAL QUALITY MANAGEMENT (TQM) & QUALITY
TOOLS
Questions 1–80

1. Which total quality management (TQM) process was developed to
stress management’s responsibility for quality?

A) ISO 9000
B) Six Sigma
C) 14 points for quality improvement
D) PDSA cycle

Correct Answer: C

Rationale: W. Edwards Deming developed the “14 Points” to guide
companies in quality improvement, emphasizing management’s
responsibility for quality. This was a shift from the traditional view that
workers were solely responsible for defects.

,2. Which TQM process consists of 13 published standards and
guidelines?

A) Six Sigma
B) ISO 14000
C) ISO 9000
D) Malcolm Baldrige Award

Correct Answer: C

Rationale: ISO 9000 is a set of international quality standards and a
certification demonstrating companies have met all the standards
specified. ISO 14000 addresses environmental responsibility, not quality
management.



3. What is the most important principle of TQM?

A) Maximizing shareholder value
B) Meeting the needs and satisfaction of customers
C) Enhancing employee morale
D) Reducing operational costs

Correct Answer: B

Rationale: TQM is fundamentally a customer-focused philosophy.
Quality is defined as meeting or exceeding customer expectations.
Without customer satisfaction, continuous improvement efforts lack
direction and purpose.



4. The common theme in TQM across all functions in an
organization is to:

,A) Maximize shareholder value
B) Eliminate all forms of waste
C) Satisfy customer needs
D) Reduce employee turnover

Correct Answer: C

Rationale: TQM’s most important principle is its focus on customer
needs and satisfaction. All quality efforts must ultimately align with
what customers value.



5. What is the primary focus of Six Sigma in operations
management?

A) Enhancing employee satisfaction
B) Reducing defects and improving quality
C) Lowering operational costs
D) Increasing production speed

Correct Answer: B

Rationale: Six Sigma is a disciplined, data-driven methodology for
eliminating defects, driving toward six standard deviations between the
mean and the nearest specification limit, resulting in approximately 3–4
defective parts per million.



6. What quality tool is used to record the frequency of occurrence of
certain process failures?

A) Pareto chart
B) Checklist
C) Cause-and-effect diagram
D) Control chart

, Correct Answer: B

Rationale: A checklist is a list of common defects and the number of
observed occurrences of these defects. It is a simple yet effective fact-
finding tool that allows the worker to collect specific information
regarding observed defects.



7. Which quality tool is also known as a fishbone diagram?

A) Pareto chart
B) Scatter diagram
C) Cause-and-effect diagram
D) Histogram

Correct Answer: C

Rationale: A cause-and-effect diagram identifies potential causes of
particular quality problems and is often called a fishbone diagram
because of its shape. It is a problem-solving tool commonly used by
quality control teams.



8. What type of chart evaluates whether a process is operating
within expectations?

A) Histogram
B) Control chart
C) Scatter diagram
D) Pareto chart

Correct Answer: B

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