WGU D469 – Quality, Continuous
Improvement, and Lean Six Sigma:
Complete 250 Q&A Study Bank with
Detailed Rationales
Section 1: Quality Management Foundations (Questions 1–50)
1. Which of the following is a core principle of W. Edwards Deming's
philosophy on quality management?
A) Quality is the responsibility of the quality control department.
B) Management must create a system that allows workers to do their
best.
C) The primary focus should be on inspecting products to find defects.
D) Cost reduction is more important than quality improvement.
Correct Answer: B
Rationale: Deming emphasized that management is responsible for the
system within which people work. He believed that by improving the
system, management enables workers to perform at their highest potential
and produce higher quality. Options A and C reflect a traditional,
inspection-based approach that Deming argued against, and option D
contradicts his belief that improving quality ultimately reduces costs.
,2. According to Joseph Juran, the "Juran Trilogy" consists of which
three managerial processes?
A) Plan, Do, Check, Act
B) Quality Planning, Quality Control, Quality Improvement
C) Define, Measure, Analyze, Improve, Control
D) Sort, Set in Order, Shine, Standardize, Sustain
Correct Answer: B
Rationale: Juran defined quality management through three core
processes: Quality Planning (to design products and processes), Quality
Control (to monitor and ensure adherence to standards), and Quality
Improvement (to achieve breakthrough levels of performance). Option A is
the PDCA cycle, option C is the DMAIC framework, and option D is the 5S
methodology.
3. Philip Crosby is best known for which concept?
A) Zero Defects
B) The 14 Points for Management
C) The Juran Trilogy
D) The 8 Wastes
Correct Answer: A
Rationale: Philip Crosby championed the concept of "Zero Defects" and
the idea that "quality is free" because the cost of preventing defects is
lower than the cost of fixing them. Option B belongs to Deming, option C
to Juran, and option D is a Lean concept.
,4. The Plan-Do-Check-Act (PDCA) cycle is a model for:
A) Statistical process control
B) Continuous improvement
C) Employee motivation
D) Financial auditing
Correct Answer: B
Rationale: The PDCA cycle is a fundamental model for continuous
improvement. It provides a structured approach for testing changes on a
small scale, evaluating results, and implementing successful improvements
more broadly.
5. What is "fitness for use" in the context of quality?
A) The aesthetic appeal of a product
B) How well the product or service does what it is supposed to do
C) The price of the product compared to competitors
D) The marketing strategy used to promote the product
Correct Answer: B
Rationale: Fitness for use is a quality concept that evaluates whether a
product or service meets customer needs and performs its intended
function effectively. It is customer-focused and considers reliability,
durability, and serviceability.
, 6. Quality of design refers to:
A) The manufacturing process used to create a product
B) Designing quality characteristics into a product or service
C) The inspection methods used after production
D) The packaging and labeling of the product
Correct Answer: B
Rationale: Quality of design involves intentionally incorporating quality
characteristics into a product or service during the design phase. This
proactive approach ensures that quality is built in from the beginning
rather than inspected in later.
7. Performance as a quality dimension refers to:
A) How well the product sells
B) The basic operating characteristics of a product
C) The price point of the product
D) The marketing campaign effectiveness
Correct Answer: B
Rationale: Performance refers to the primary operating characteristics of a
product—for example, how well a car handles or its gas mileage. It is a key
dimension of product quality that customers directly experience.
Improvement, and Lean Six Sigma:
Complete 250 Q&A Study Bank with
Detailed Rationales
Section 1: Quality Management Foundations (Questions 1–50)
1. Which of the following is a core principle of W. Edwards Deming's
philosophy on quality management?
A) Quality is the responsibility of the quality control department.
B) Management must create a system that allows workers to do their
best.
C) The primary focus should be on inspecting products to find defects.
D) Cost reduction is more important than quality improvement.
Correct Answer: B
Rationale: Deming emphasized that management is responsible for the
system within which people work. He believed that by improving the
system, management enables workers to perform at their highest potential
and produce higher quality. Options A and C reflect a traditional,
inspection-based approach that Deming argued against, and option D
contradicts his belief that improving quality ultimately reduces costs.
,2. According to Joseph Juran, the "Juran Trilogy" consists of which
three managerial processes?
A) Plan, Do, Check, Act
B) Quality Planning, Quality Control, Quality Improvement
C) Define, Measure, Analyze, Improve, Control
D) Sort, Set in Order, Shine, Standardize, Sustain
Correct Answer: B
Rationale: Juran defined quality management through three core
processes: Quality Planning (to design products and processes), Quality
Control (to monitor and ensure adherence to standards), and Quality
Improvement (to achieve breakthrough levels of performance). Option A is
the PDCA cycle, option C is the DMAIC framework, and option D is the 5S
methodology.
3. Philip Crosby is best known for which concept?
A) Zero Defects
B) The 14 Points for Management
C) The Juran Trilogy
D) The 8 Wastes
Correct Answer: A
Rationale: Philip Crosby championed the concept of "Zero Defects" and
the idea that "quality is free" because the cost of preventing defects is
lower than the cost of fixing them. Option B belongs to Deming, option C
to Juran, and option D is a Lean concept.
,4. The Plan-Do-Check-Act (PDCA) cycle is a model for:
A) Statistical process control
B) Continuous improvement
C) Employee motivation
D) Financial auditing
Correct Answer: B
Rationale: The PDCA cycle is a fundamental model for continuous
improvement. It provides a structured approach for testing changes on a
small scale, evaluating results, and implementing successful improvements
more broadly.
5. What is "fitness for use" in the context of quality?
A) The aesthetic appeal of a product
B) How well the product or service does what it is supposed to do
C) The price of the product compared to competitors
D) The marketing strategy used to promote the product
Correct Answer: B
Rationale: Fitness for use is a quality concept that evaluates whether a
product or service meets customer needs and performs its intended
function effectively. It is customer-focused and considers reliability,
durability, and serviceability.
, 6. Quality of design refers to:
A) The manufacturing process used to create a product
B) Designing quality characteristics into a product or service
C) The inspection methods used after production
D) The packaging and labeling of the product
Correct Answer: B
Rationale: Quality of design involves intentionally incorporating quality
characteristics into a product or service during the design phase. This
proactive approach ensures that quality is built in from the beginning
rather than inspected in later.
7. Performance as a quality dimension refers to:
A) How well the product sells
B) The basic operating characteristics of a product
C) The price point of the product
D) The marketing campaign effectiveness
Correct Answer: B
Rationale: Performance refers to the primary operating characteristics of a
product—for example, how well a car handles or its gas mileage. It is a key
dimension of product quality that customers directly experience.
