WGU C215 OPERATIONS AND SUPPLY
CHAIN MANAGEMENT FINAL EXAM
PREP
1. Which forecasting method involves a panel of experts providing multiple rounds of
feedback until a consensus is reached?
A. Delphi Method
B. Moving Average
C. Exponential Smoothing
D. Trend Projection
Answer: A
Conceptual Explanation: The Delphi method is a qualitative forecasting technique that
uses a series of questionnaires sent to a panel of experts to reach a group consensus.
2. In the context of quality management, what does a Poka-yoke system refer to?
A. A fail-safe mechanism to prevent human error
B. A statistical tool for measuring variance
C. A continuous improvement process
,D. A method for inventory classification
Answer: A
Conceptual Explanation: Poka-yoke is a Japanese term that means ‘mistake-proofing’ or
‘error-prevention.’ It aims to eliminate product defects by preventing, correcting, or
drawing attention to human errors as they occur.
3. Which of the following describes the ‘Bullwhip Effect’ in a supply chain?
A. The acceleration of inventory turnover near the customer
B. The reduction of lead times through vertical integration
C. Increased variability in demand orders moving up the supply chain
D. Consistent demand patterns across all supply chain tiers
Answer: C
Conceptual Explanation: The Bullwhip Effect is a supply chain phenomenon describing
how small fluctuations in demand at the retail level can cause progressively larger
fluctuations in demand at the wholesale, distributor, manufacturer, and raw material
supplier levels.
4. What is the primary objective of the Economic Order Quantity (EOQ) model?
A. To minimize the total cost of ordering and carrying inventory
B. To maximize the amount of inventory held in stock
C. To reduce the lead time for raw material delivery
, D. To ensure 100% service level for all customers
Answer: A
Conceptual Explanation: The EOQ model calculates the optimal order quantity that
minimizes the sum of annual inventory holding costs and ordering costs.
5. Which type of layout is most appropriate for a high-volume, standardized production
environment like an automobile assembly line?
A. Process-oriented layout
B. Product-oriented layout
C. Fixed-position layout
D. Work cell layout
Answer: B
Conceptual Explanation: Product-oriented layouts (assembly lines) are organized around
the product and are designed for high-volume, low-variety production.
6. What does a ‘Critical Path’ represent in project management (PERT/CPM)?
A. The path with the most resources assigned
B. The shortest time sequence through the network
C. A sequence of activities with the highest amount of slack
D. The longest sequence of activities that determines project duration
CHAIN MANAGEMENT FINAL EXAM
PREP
1. Which forecasting method involves a panel of experts providing multiple rounds of
feedback until a consensus is reached?
A. Delphi Method
B. Moving Average
C. Exponential Smoothing
D. Trend Projection
Answer: A
Conceptual Explanation: The Delphi method is a qualitative forecasting technique that
uses a series of questionnaires sent to a panel of experts to reach a group consensus.
2. In the context of quality management, what does a Poka-yoke system refer to?
A. A fail-safe mechanism to prevent human error
B. A statistical tool for measuring variance
C. A continuous improvement process
,D. A method for inventory classification
Answer: A
Conceptual Explanation: Poka-yoke is a Japanese term that means ‘mistake-proofing’ or
‘error-prevention.’ It aims to eliminate product defects by preventing, correcting, or
drawing attention to human errors as they occur.
3. Which of the following describes the ‘Bullwhip Effect’ in a supply chain?
A. The acceleration of inventory turnover near the customer
B. The reduction of lead times through vertical integration
C. Increased variability in demand orders moving up the supply chain
D. Consistent demand patterns across all supply chain tiers
Answer: C
Conceptual Explanation: The Bullwhip Effect is a supply chain phenomenon describing
how small fluctuations in demand at the retail level can cause progressively larger
fluctuations in demand at the wholesale, distributor, manufacturer, and raw material
supplier levels.
4. What is the primary objective of the Economic Order Quantity (EOQ) model?
A. To minimize the total cost of ordering and carrying inventory
B. To maximize the amount of inventory held in stock
C. To reduce the lead time for raw material delivery
, D. To ensure 100% service level for all customers
Answer: A
Conceptual Explanation: The EOQ model calculates the optimal order quantity that
minimizes the sum of annual inventory holding costs and ordering costs.
5. Which type of layout is most appropriate for a high-volume, standardized production
environment like an automobile assembly line?
A. Process-oriented layout
B. Product-oriented layout
C. Fixed-position layout
D. Work cell layout
Answer: B
Conceptual Explanation: Product-oriented layouts (assembly lines) are organized around
the product and are designed for high-volume, low-variety production.
6. What does a ‘Critical Path’ represent in project management (PERT/CPM)?
A. The path with the most resources assigned
B. The shortest time sequence through the network
C. A sequence of activities with the highest amount of slack
D. The longest sequence of activities that determines project duration
