CSSGB Practice Questions & Practice Tests

About the ASQ CSSGB Exam

The ASQ Certified Six Sigma Green Belt (CSSGB) credential is designed for professionals who support improvement projects, analyze and solve quality problems, and apply Six Sigma tools and processes. Green Belts commonly work on improvement teams under the guidance of a Six Sigma Black Belt. The exam requires candidates to apply DMAIC, Lean principles, project-management tools, statistical methods, and practical problem-solving techniques.

The computer-based CSSGB exam contains 110 multiple-choice questions, including 100 scored questions and 10 unscored pretest questions. Candidates receive 4 hours and 18 minutes of exam time within a 4.5-hour appointment. The examination is open book, subject to ASQ’s rules for reference materials.

Applicants must have three years of full-time, paid work experience in one or more areas covered by the CSSGB Body of Knowledge. Educational waivers are not granted. Unlike the CSSBB certification, the CSSGB application does not require completed project affidavits.

The 100 scored questions are distributed across six Body of Knowledge sections:

Overview: Six Sigma and the Organization: 11 questions
Covers the value and development of Six Sigma, organizational goals, business drivers, performance metrics, Lean concepts, value stream mapping, Design for Six Sigma methodologies, and basic failure mode and effects analysis.

Define Phase: 20 questions
Focuses on project selection, process elements, benchmarking, SIPOC, process owners and stakeholders, voice of the customer, customer requirements, project charters, scope, metrics, planning tools, risk management, project closure, management tools, business results, communication, and team dynamics.

Measure Phase: 20 questions
Includes process analysis and documentation, probability concepts, the central limit theorem, statistical distributions, data types, measurement scales, sampling, data collection, descriptive statistics, graphical methods, measurement system analysis, process stability, and capability analysis.

Analyze Phase: 18 questions
Covers multi-vari studies, correlation and linear regression, statistical and practical significance, sample size, statistical power, type I and type II errors, hypothesis tests for means, variances and proportions, analysis of variance, chi-square tests, gap analysis, and root cause analysis.

Improve Phase: 16 questions
Includes basic design of experiments terminology, main-effects and interaction plots, proof of concept, simulations, pilot testing, waste elimination, pull systems, kanban, 5S, standard work, mistake-proofing, cycle-time reduction, SMED, kaizen, and kaizen blitz.

Control Phase: 15 questions
Focuses on statistical process control, common and special cause variation, rational subgrouping, variable and attribute control charts, control plans, document control, training, audits, PDCA, total productive maintenance, and visual factory methods.

These practice questions are organized around the six CSSGB Body of Knowledge sections so candidates can identify which areas are costing them marks. Review Mode provides immediate explanations to support learning, while Exam Mode helps develop pacing, concentration, and confidence under timed conditions.

Quality Gurus Inc. has supported hundreds of thousands of learners through online courses in quality management, Six Sigma, auditing, statistics, and ASQ certification preparation. Our CSSGB practice questions complement the complete CSSGB preparation course available through Learn.QualityGurus.com, which includes structured lessons, worked examples, practice activities, and exam-focused guidance.