MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
The points plotting below the lower control limit of p-chart do not always represent the out-of-control process or an assignable cause. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Even if 100% inspection is done, control chart can have a variable sample size. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
For a control chart data having the average sample fraction nonconforming= 0.2313 and the sample size=50, what will be the value of the UCL for the np control chart? |
| A. | 2.62 |
| B. | 20.510 |
| C. | 11.56 |
| D. | 11.892 |
| Answer» C. 11.56 | |
| 4. |
If the p=0.2313 for a np chart, and the number of items in a sample are 50, what will be the center line value of the np chart? |
| A. | 10.34 |
| B. | 11.56 |
| C. | 10.11 |
| D. | 13.21 |
| Answer» C. 10.11 | |
| 5. |
The center line of the np-control chart represents the value equal to ____ |
| A. | p |
| B. | <span style="text-decoration:overline;">p</span> |
| C. | np |
| D. | 1-np |
| Answer» D. 1-np | |
| 6. |
The number nonconforming chart is also called ___ |
| A. | np-chart |
| B. | p-chart |
| C. | c-chart |
| D. | s-chart |
| Answer» B. p-chart | |
| 7. |
If the probability of a unit being conforming or nonconforming, depends on the previous unit being conforming or nonconforming, can p-chart be applied on the process? |
| A. | Yes |
| B. | No |
| C. | This depends on the sample size |
| D. | This depends on the operator changes |
| Answer» C. This depends on the sample size | |
| 8. |
For narrower limits of control, which of this is true? |
| A. | Chart becomes insensitive to small shift |
| B. | Chart becomes more sensitive to small shift but gives false alarms |
| C. | Chart becomes more sensitive to small shift but gives accurate alarms |
| D. | Chart gives no alarms at all |
| Answer» C. Chart becomes more sensitive to small shift but gives accurate alarms | |
| 9. |
For what value of sample size, will the p-chart will have a LCL value higher than 0 when p=0.05 and 3 sigma limits are used? |
| A. | n>121 |
| B. | n>100 |
| C. | n>125 |
| D. | n>171 |
| Answer» E. | |