MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
( widehat{ _3} = 1.047 overline{MR} ); where ( overline{MR} ) is the median of the span-two moving ranges. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The estimation of the process standard deviation for any individuals control chart is expressed as ____ in the terms of sample standard deviation. |
| A. | ( widehat{ _2}= frac{s}{c_4} ) |
| B. | ( widehat{ _2}= frac{s}{c_1} ) |
| C. | ( widehat{ _2}= frac{s}{c_2} ) |
| D. | ( widehat{ _2}= frac{s}{c_3} ) |
| Answer» B. ( widehat{ _2}= frac{s}{c_1} ) | |
| 3. |
The estimator of the process standard deviation for any individuals control chart is written as? |
| A. | ( frac{ overline{MR}}{2} ) |
| B. | ( overline{MR}/0.8865 ) |
| C. | ( overline{MR}/1.128 ) |
| D. | (1.128 overline{MR} ) |
| Answer» D. (1.128 overline{MR} ) | |
| 4. |
What is the correct expression for average moving range for any individuals control chart? |
| A. | ( overline{MR} = sum_{i=2}^m frac{MR_i}{m-1} ) |
| B. | ( overline{MR} = sum_{i=1}^m frac{MR_i}{m} ) |
| C. | ( overline{MR} = sum_{i=2}^{m-1} frac{MR_i}{m-1} ) |
| D. | ( overline{MR} = sum_{i=1}^m frac{MR_i}{m-1} ) |
| Answer» B. ( overline{MR} = sum_{i=1}^m frac{MR_i}{m} ) | |
| 5. |
Which of this stands correct for the relation between the ARL for a shewhart control chart and the individual control chart ARL? |
| A. | ARL<sub>individual control chart</sub>=1/ ARL<sub>shewhart control chart</sub> |
| B. | ARL<sub>individual control chart</sub>= ARL<sub>shewhart control chart</sub> |
| C. | ARL<sub>individual control chart</sub> ARL<sub>shewhart control chart</sub> |
| D. | ARL<sub>individual control chart</sub> ARL<sub>shewhart control chart</sub> |
| Answer» D. ARL<sub>individual control chart</sub> ARL<sub>shewhart control chart</sub> | |
| 6. |
The ARL for any individuals control chart with the 1 sigma limits, and the =0.972, is ____ |
| A. | 2 |
| B. | 6.3 |
| C. | 43.96 |
| D. | 13 |
| Answer» D. 13 | |
| 7. |
The value of ARL for any x bar control chart having 3- limits is __________ |
| A. | 482 |
| B. | 310 |
| C. | 370 |
| D. | 270 |
| Answer» D. 270 | |
| 8. |
The center line for any individuals control chart represents the value equal to __________ |
| A. | The process mean |
| B. | The moving range |
| C. | The mean of moving ranges |
| D. | The process standard deviation |
| Answer» B. The moving range | |
| 9. |
What is the correct expression for the UCL for an Individuals Control Chart? |
| A. | UCL= ( bar{x}+ frac{3 overline{MR}}{d_2} ) |
| B. | UCL= ( bar{x}+ frac{2 overline{MR}}{d_2} ) |
| C. | UCL= ( bar{x}+ frac{3 overline{MR}}{d_3} ) |
| D. | UCL= ( bar{x}+ frac{ overline{MR}}{d_2} ) |
| Answer» B. UCL= ( bar{x}+ frac{2 overline{MR}}{d_2} ) | |
| 10. |
In the case of automatic manufacturing, the sample size is ___________ |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | Greater than 5 |
| Answer» B. 2 | |
| 11. |
The Shewhart control charts for sample size n=1 are called _________ |
| A. | Single Sample control charts |
| B. | Stationary control charts |
| C. | Control charts for zero variance |
| D. | Control charts for individual measurements |
| Answer» E. | |