MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Statistical Quality Control knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the Cpk=0.9899, the usage of modified control charts is very necessary. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The six-sigma approach when implemented for a long time, the process may need modified control charts. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of these does not say that the modified control limits must be applied? |
| A. | C<sub>pk</sub> 1 |
| B. | Process spread is considerably small |
| C. | Natural variability becomes high |
| D. | Process capability becomes quite good |
| Answer» D. Process capability becomes quite good | |
| 4. |
Which of these is a method used when the process capability is quite high? |
| A. | Acceptance sampling |
| B. | Design of experiments |
| C. | Acceptance control charts |
| D. | Shewhart control charts |
| Answer» D. Shewhart control charts | |
| 5. |
Which of these is not a name of Modified control limits for x charts? |
| A. | Acceptance limits |
| B. | Reject limits |
| C. | Reserve limits |
| D. | Liquid limits |
| Answer» C. Reserve limits | |
| 6. |
Which of these is used when the process has achieved high capability level? |
| A. | Trial control limits |
| B. | Actual control limits |
| C. | Modified control limits |
| D. | Easy control limits |
| Answer» D. Easy control limits | |
| 7. |
Which of these is not a purpose for which control charts are produced for? |
| A. | Control of the process |
| B. | Reduction of variability |
| C. | Increment of variability |
| D. | Continuous process improvement |
| Answer» D. Continuous process improvement | |
| 8. |
Which method was suggested by Del Castillo and Montgomery, to be used instead of the Q-chart to get better ARL performance? |
| A. | Kalman Filter |
| B. | Acceptance Sampling |
| C. | Design of experiments |
| D. | Deleting some samples completely |
| Answer» B. Acceptance Sampling | |
| 9. |
Which of these charts can be used instead of Shewhart control charts, in the case of small number of subgroups used to construct the charts, which were recommended by Quesenberry? |
| A. | R-charts |
| B. | C-charts |
| C. | P-charts |
| D. | Q-charts |
| Answer» E. | |
| 10. |
Who was the first person to study the effect of the number of subgroups used for x bar and R chart control limit calculation on the false alarm rate? |
| A. | Hillier |
| B. | Robertson |
| C. | Wang |
| D. | Ricardo |
| Answer» B. Robertson | |
| 11. |
The false alarm rate is _______ when small number of subgroups is used for the Shewhart control charts. |
| A. | Decreased |
| B. | Increased |
| C. | Remains same |
| D. | Changed randomly |
| Answer» C. Remains same | |
| 12. |
Which of these is eliminated by the self starting approach? |
| A. | Phase I parameter estimation phase |
| B. | Phase I parameter measurement phase |
| C. | Phase II parameter estimation phase |
| D. | Phase II parameter measurement phase |
| Answer» B. Phase I parameter measurement phase | |
| 13. |
Which of these is not one of the areas for which, the self starting cusum approach uses regular process measurements for? |
| A. | For establishing the cusum |
| B. | For calibrating the cusum |
| C. | For acceptance sampling |
| D. | For process monitoring |
| Answer» D. For process monitoring | |
| 14. |
Which of these is suitable for the short run environment? |
| A. | x bar chart |
| B. | R chart |
| C. | p-chart |
| D. | Self starting cusum chart |
| Answer» E. | |
| 15. |
EWMA and cusum charts can be used for the short production runs because ____________ |
| A. | They are good in phase II |
| B. | They have shorter ARL |
| C. | They don t detect process shift |
| D. | They detect larger process shift |
| Answer» C. They don t detect process shift | |