Principles and Practice of Industrial
Engineering Examination Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. Which of the following is the primary objective of industrial
engineering?
A. Designing electrical circuits
B. Improving systems, processes, and productivity
C. Developing pharmaceutical products
D. Constructing buildings
Answer: B. Improving systems, processes, and productivity
Rationale: Industrial engineering focuses on optimizing complex
systems involving people, materials, information, equipment, and
energy. The goal is to improve efficiency, productivity, quality, safety,
and cost-effectiveness across organizations.
2. A process capability index (Cp) measures:
,A. Process average location
B. Process profitability
C. Potential process capability relative to specification limits
D. Employee productivity
Answer: C. Potential process capability relative to specification limits
Rationale: Cp compares the spread of process variation to
specification limits. It evaluates the potential ability of a process to
meet specifications assuming the process is centered. Higher Cp values
indicate better capability.
3. In work measurement, a time study is primarily used to:
A. Evaluate product quality
B. Establish standard times for tasks
C. Design factory layouts
D. Determine inventory levels
Answer: B. Establish standard times for tasks
Rationale: Time studies involve observing and recording task
durations to establish standard times for labor planning, scheduling,
costing, and productivity measurement.
, 4. Which inventory model assumes constant demand and
instantaneous replenishment?
A. PERT Model
B. EOQ Model
C. Queuing Model
D. Simulation Model
Answer: B. EOQ Model
Rationale: The Economic Order Quantity (EOQ) model assumes known,
constant demand, fixed ordering costs, and immediate replenishment.
It identifies the order quantity minimizing total inventory costs.
5. Lean manufacturing primarily seeks to:
A. Increase machine complexity
B. Eliminate waste
C. Increase inventory levels
D. Maximize overtime hours
Answer: B. Eliminate waste
Rationale: Lean manufacturing emphasizes identifying and
eliminating non-value-added activities, thereby reducing waste,
improving flow, enhancing quality, and lowering costs.
, 6. Which of the following is NOT one of the traditional seven wastes
in Lean?
A. Transportation
B. Waiting
C. Inventory
D. Innovation
Answer: D. Innovation
Rationale: The traditional seven wastes include transportation,
inventory, motion, waiting, overproduction, overprocessing, and
defects. Innovation is not considered a waste.
7. In a control chart, points falling outside control limits generally
indicate:
A. Common-cause variation
B. Special-cause variation
C. Normal process operation
D. Improved productivity
Answer: B. Special-cause variation
Engineering Examination Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. Which of the following is the primary objective of industrial
engineering?
A. Designing electrical circuits
B. Improving systems, processes, and productivity
C. Developing pharmaceutical products
D. Constructing buildings
Answer: B. Improving systems, processes, and productivity
Rationale: Industrial engineering focuses on optimizing complex
systems involving people, materials, information, equipment, and
energy. The goal is to improve efficiency, productivity, quality, safety,
and cost-effectiveness across organizations.
2. A process capability index (Cp) measures:
,A. Process average location
B. Process profitability
C. Potential process capability relative to specification limits
D. Employee productivity
Answer: C. Potential process capability relative to specification limits
Rationale: Cp compares the spread of process variation to
specification limits. It evaluates the potential ability of a process to
meet specifications assuming the process is centered. Higher Cp values
indicate better capability.
3. In work measurement, a time study is primarily used to:
A. Evaluate product quality
B. Establish standard times for tasks
C. Design factory layouts
D. Determine inventory levels
Answer: B. Establish standard times for tasks
Rationale: Time studies involve observing and recording task
durations to establish standard times for labor planning, scheduling,
costing, and productivity measurement.
, 4. Which inventory model assumes constant demand and
instantaneous replenishment?
A. PERT Model
B. EOQ Model
C. Queuing Model
D. Simulation Model
Answer: B. EOQ Model
Rationale: The Economic Order Quantity (EOQ) model assumes known,
constant demand, fixed ordering costs, and immediate replenishment.
It identifies the order quantity minimizing total inventory costs.
5. Lean manufacturing primarily seeks to:
A. Increase machine complexity
B. Eliminate waste
C. Increase inventory levels
D. Maximize overtime hours
Answer: B. Eliminate waste
Rationale: Lean manufacturing emphasizes identifying and
eliminating non-value-added activities, thereby reducing waste,
improving flow, enhancing quality, and lowering costs.
, 6. Which of the following is NOT one of the traditional seven wastes
in Lean?
A. Transportation
B. Waiting
C. Inventory
D. Innovation
Answer: D. Innovation
Rationale: The traditional seven wastes include transportation,
inventory, motion, waiting, overproduction, overprocessing, and
defects. Innovation is not considered a waste.
7. In a control chart, points falling outside control limits generally
indicate:
A. Common-cause variation
B. Special-cause variation
C. Normal process operation
D. Improved productivity
Answer: B. Special-cause variation
