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The CSSYB exam has 90 questions and runs 2 hours 18 minutes.
These 10 free CSSYB questions are organized by exam domain, so you can see how each part of the Certified Six Sigma Yellow Belt blueprint is tested. Reveal the answer and explanation under each question.
Data entry for a sales order now takes seven minutes instead of twelve, yet customers still wait four days for confirmation. Orders pass through Sales, Credit Review, and Scheduling. The team needs to see where work accumulates and which information releases it to the next department. The best tool for this diagnosis is:
Correct answer: C - A current-state value stream map
An audit examines 500 order records. Each record has six required fields, and each field is one defined defect opportunity. The auditors find 30 incorrect fields spread across 18 records. All six fields were checked in every record. The defects per million opportunities (DPMO) for this audit are:
Correct answer: B - 10,000
A cross-functional team has authority to choose a small pilot. At its first two meetings, two senior members dominated discussion, and several technicians left without having their ideas recorded. How should the facilitator structure the next decision to obtain contributions from the whole team?
Correct answer: C - Use silent idea generation, round-robin recording, clarification, and private ranking.
Customers describe quotation service as "too slow." Interviews establish a specific requirement: at least 95% of complete requests must receive a usable quote within one business day. Which critical-to-quality measure preserves that requirement?
Correct answer: C - Percentage of complete requests receiving a usable quote within one business day
A receiving team defines its SIPOC boundary as "from unloading a supplier delivery to releasing accepted material to Assembly." The delivery includes a supplier material certificate, and Receiving inspects the material before release. For this bounded process, which entry belongs in the Outputs column?
Correct answer: D - Accepted material released to Assembly
Two inspectors use the same gauge to measure the same ten parts repeatedly in randomized order during one shift. Each inspector obtains tightly clustered readings on each part, but one consistently reads about 0.15 mm higher than the other. Which source of measurement variation does this pattern chiefly identify?
Correct answer: A - Reproducibility differences between the inspectors
Two invoice-processing workflows are compared using the same timing definition and comparable work. Both average ten minutes per invoice. The original workflow has a standard deviation of five minutes; the revised workflow has a standard deviation of two minutes. A manager says the revision achieved nothing because the averages match. Which finding has the manager overlooked?
Correct answer: B - Average time is unchanged, but consistency has improved.
A pre-shipment sample of lifting slings has load-rating labels that overstate verified capacities. Using those ratings could cause a sling to fail. The rest of the batch is unchecked, and the entire batch is still on site awaiting shipment. What takes priority while the cause of the mislabeling is unknown?
Correct answer: D - Block release and segregate the affected batch pending authorized verification and disposition.
An FMEA assigns a missing-seal failure severity 8, occurrence 3, and detection 7. A validated inspection reduces the detection rating to 2. It does not prevent seals from being omitted or change the consequence if a missing seal escapes inspection. Which revised assessment is consistent with this change?
Correct answer: B - RPN 48; detection improves while severity and occurrence stay unchanged.
A filling process has an established X-bar chart with a 500 mL center line and control limits of 496 and 504 mL. The latest five-bottle subgroup averages 501.2 mL. The R chart is stable, neither chart triggers any selected signal rule, and sampled bottles meet specifications. An operator proposes lowering the fill setting simply because the latest average is above the center line. What response is appropriate?
Correct answer: A - Leave the setting unchanged and continue scheduled monitoring.
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