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Free CSSGB Practice Questions

10 free, exam-style Certified Six Sigma Green Belt (CSSGB) (CSSGB) practice questions with answers and explanations. No signup required. Work through them below, then take the full free CSSGB practice test to study every exam domain.

Question 1

Which quality pioneer is credited with developing the 14 Points for management and the System of Profound Knowledge?

  1. Joseph Juran
  2. W. Edwards Deming
  3. Walter Shewhart
  4. Kaoru Ishikawa
Show answer & explanation

Correct answer: B - W. Edwards Deming

Question 2

Joseph Juran's Trilogy consists of which three components?

  1. Plan, Do, Check
  2. Quality Planning, Quality Control, Quality Improvement
  3. Define, Measure, Analyze
  4. Prevention, Appraisal, Failure
Show answer & explanation

Correct answer: B - Quality Planning, Quality Control, Quality Improvement

Question 3

Walter Shewhart is BEST known for his contributions in which area?

  1. Zero defects philosophy
  2. Quality circles and company-wide quality
  3. Statistical process control and control charts
  4. Robust design and loss function
Show answer & explanation

Correct answer: C - Statistical process control and control charts

Question 4

A process operating at Six Sigma with the 1.5 sigma shift produces approximately how many defects per million opportunities?

  1. 66,800
  2. 6,210
  3. 230
  4. 3.4
Show answer & explanation

Correct answer: D - 3.4

Question 5

Which quality pioneer developed the cause-and-effect diagram and championed quality circles?

  1. Philip Crosby
  2. Genichi Taguchi
  3. Kaoru Ishikawa
  4. Armand Feigenbaum
Show answer & explanation

Correct answer: C - Kaoru Ishikawa

Question 6

Philip Crosby's quality philosophy is BEST summarized by which concept?

  1. Continuous improvement through statistical methods
  2. Quality is free; conformance to requirements with zero defects
  3. Robust design using signal-to-noise ratios
  4. The vital few versus the useful many
Show answer & explanation

Correct answer: B - Quality is free; conformance to requirements with zero defects

Question 7

Genichi Taguchi is BEST known for which contribution to quality management?

  1. The 14 Points for management
  2. The quality loss function and robust design
  3. The PDCA cycle
  4. Cause-and-effect diagrams
Show answer & explanation

Correct answer: B - The quality loss function and robust design

Question 8

Six Sigma was originally developed and deployed at which organization?

  1. Toyota
  2. General Electric
  3. Motorola
  4. Ford Motor Company
Show answer & explanation

Correct answer: C - Motorola

Question 9

A process operating at 3 sigma produces approximately how many DPMO?

  1. 3.4
  2. 6,210
  3. 66,800
  4. 308,000
Show answer & explanation

Correct answer: C - 66,800

Question 10

Deming emphasized that the majority of quality problems are caused by which type of variation?

  1. Special cause variation controllable by workers
  2. Common cause variation inherent in the system
  3. Measurement system error
  4. Specification limit violations
Show answer & explanation

Correct answer: B - Common cause variation inherent in the system

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