WGU C215 OPERATIONS AND SUPPLY
CHAIN MANAGEMENT ADVANCED
PREP
1. Which quality management expert defined quality as ‘fitness for use’ and developed the
Quality Trilogy?
A. Joseph Juran
B. W. Edwards Deming
C. Philip Crosby
D. Genichi Taguchi
Answer: A
Conceptual Explanation: Joseph Juran is credited with defining quality as fitness for use
and creating the Quality Trilogy: planning, control, and improvement.
2. In the Six Sigma DMAIC process, which phase focuses on identifying the root causes of
defects?
A. Define
B. Measure
,C. Improve
D. Analyze
Answer: D
Conceptual Explanation: The Analyze phase is dedicated to determining the root cause of
the problem using data collected in previous steps.
3. What term describes the phenomenon where small fluctuations in demand at the retail
level create larger fluctuations at the wholesale and manufacturing levels?
A. The Safety Stock Surge
B. The Bullwhip Effect
C. The Demand Drift
D. The Lead Time Gap
Answer: B
Conceptual Explanation: The bullwhip effect refers to information distortion in a supply
chain that increases variance as one moves upstream.
4. Which of the following is a primary assumption of the Economic Order Quantity (EOQ)
model?
A. Demand is variable and unpredictable
B. Lead time is constant and known
C. There are significant discounts for bulk orders
, D. Shortages are allowed to keep costs low
Answer: B
Conceptual Explanation: EOQ assumes demand is constant, lead time is known/constant,
and no shortages occur.
5. What is the goal of the ‘Analyze’ step in the theory of constraints (TOC) five-step process?
A. Subordinate everything to the constraint
B. Improve the bottleneck’s capacity
C. Identify the system constraint
D. Elevate the constraint
Answer: C
Conceptual Explanation: The first step of TOC is identifying the system’s bottleneck or
constraint.
6. A ‘Poka-Yoke’ is a mechanism in Lean manufacturing designed to do what?
A. Increase the speed of production
B. Organize the workspace into 5 zones
C. Ensure mistake-proofing
D. Minimize inventory levels
Answer: C
CHAIN MANAGEMENT ADVANCED
PREP
1. Which quality management expert defined quality as ‘fitness for use’ and developed the
Quality Trilogy?
A. Joseph Juran
B. W. Edwards Deming
C. Philip Crosby
D. Genichi Taguchi
Answer: A
Conceptual Explanation: Joseph Juran is credited with defining quality as fitness for use
and creating the Quality Trilogy: planning, control, and improvement.
2. In the Six Sigma DMAIC process, which phase focuses on identifying the root causes of
defects?
A. Define
B. Measure
,C. Improve
D. Analyze
Answer: D
Conceptual Explanation: The Analyze phase is dedicated to determining the root cause of
the problem using data collected in previous steps.
3. What term describes the phenomenon where small fluctuations in demand at the retail
level create larger fluctuations at the wholesale and manufacturing levels?
A. The Safety Stock Surge
B. The Bullwhip Effect
C. The Demand Drift
D. The Lead Time Gap
Answer: B
Conceptual Explanation: The bullwhip effect refers to information distortion in a supply
chain that increases variance as one moves upstream.
4. Which of the following is a primary assumption of the Economic Order Quantity (EOQ)
model?
A. Demand is variable and unpredictable
B. Lead time is constant and known
C. There are significant discounts for bulk orders
, D. Shortages are allowed to keep costs low
Answer: B
Conceptual Explanation: EOQ assumes demand is constant, lead time is known/constant,
and no shortages occur.
5. What is the goal of the ‘Analyze’ step in the theory of constraints (TOC) five-step process?
A. Subordinate everything to the constraint
B. Improve the bottleneck’s capacity
C. Identify the system constraint
D. Elevate the constraint
Answer: C
Conceptual Explanation: The first step of TOC is identifying the system’s bottleneck or
constraint.
6. A ‘Poka-Yoke’ is a mechanism in Lean manufacturing designed to do what?
A. Increase the speed of production
B. Organize the workspace into 5 zones
C. Ensure mistake-proofing
D. Minimize inventory levels
Answer: C
