Lean Six Sigma Green Belt Sample Paper: Control This sample paper will check your knowledge on Control phase for LSS Green Belt Click on 'Next' to start 1. If a control chart is not in control, which of the following inferences is correct?Only Common causes are presentOnly Special Causes are presentSpecial and Common causes are presentNeither Special nor Common are present2. The quality manager inspects 100 mobiles every day. He checks whether the mobiles are working or not. He would like to control chart this data. What is the most appropriate control chart to use in this case?npcuI‐MR3. Green Belt wants to control chart delivery time of pizzas. Green Belt inspects delivery time of 5 random selected pizzas every evening from 6pm ‐ 9pm. Consider the data to be normally distributed, what control chart should be used?np chartp chartXbar‐RI‐MR4. Which of the following test for special causes is not used for ‘p’ chart?6 points increasing or decreasing14 points alternating up and down4 out of 5 points more than 1 standard deviation from centre line9 points in a row on the same side of the centre line5. Please refer to Figure 3 and commentIndividual and Moving Range Charts are in controlOnly Individual chart is in controlOnly Moving Range chart is in controlNeither charts are in control6. We use control charts to monitorXs (inputs)Y (output)Both ‘a’ and ‘b’Assessment of Performance7. Process Owner is monitoring number of errors in a transaction. Process Owner inspects 5% of the total transactions in a day. The number of transactions varies every day. What type of control chart should be used?u chartp chartc chartnp chart8. A control plan may haveRisk Mitigation planAudit PlanStatistical Process Control PlanAll of the above9. Benefit/s of Poka Yoke devicesReduction/elimination in formal training programsReduction/elimination of inspectionReduction/elimination of reworkAll of the above10. The chest measurement of 20 shirts is inspected per day. What is the most appropriate control chart to detect the presence of special cause?p chartI‐MRXbar‐RXbar‐STime is Up!