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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. |
FROM_WHICH_CHART_THE_INITIAL_ESTIMATE_OF_THE_PROCESS_VARIABILITY_IS_DETERMINED??$ |
A. | R-chart |
B. | c-chart |
C. | p-chart |
D. | Cusum charts |
Answer» B. c-chart | |
2. |
The approach of using a x chart to monitor the fraction of nonconforming units or the fraction of the units exceeding the specifications, is called the ____$ |
A. | Shewhart control charts |
B. | Cusum charts |
C. | EWMA charts |
D. | Acceptance control charts |
Answer» E. | |
3. |
If the process mean increases very much, the modified control charts are not appropriate. |
A. | True |
B. | False |
Answer» B. False | |
4. |
The p-chart is the only chart to monitor the fraction of nonconforming units. |
A. | True |
B. | False |
Answer» C. | |
5. |
A modified control charts limit expression does not contain ____ |
A. | δ |
B. | σ |
C. | μ |
D. | α |
Answer» D. ‚âà√≠¬¨¬± | |
6. |
Who was the first person to develop the acceptance control charts? |
A. | Astern |
B. | Roy |
C. | Freund |
D. | Crowder |
Answer» D. Crowder | |
7. |
If there is a chance of shifting of the process variability, which chart may be used with the modified control chart? |
A. | c-chart |
B. | p-chart |
C. | R-chart |
D. | xÃÖ -chart |
Answer» D. x‚àö√â‚àö√± -chart | |
8. |
If process variability shifts, the modified control charts are _____ |
A. | Not appropriate |
B. | Totally appropriate |
C. | Good to use |
D. | Perfect for the mapping the shifts |
Answer» B. Totally appropriate | |
9. |
To design a modified control chart, we must have a good estimate of __ available. |
A. | μ |
B. | σ |
C. | μ<sup>2</sup> |
D. | process variance |
Answer» C. ‚âà√≠¬¨‚à´<sup>2</sup> | |
10. |
Which of the hypothesis can be tested using the modified control charts? |
A. | μ<sub>L</sub> ≤ μ ≤ μ<sub>U</sub> |
B. | μ<sub>L</sub> ≤ μ |
C. | μ ≤ μ<sub>U</sub> |
D. | μ<sub>L</sub> = μ = μ<sub>U</sub> |
Answer» B. ‚âà√≠¬¨‚à´<sub>L</sub> ‚Äö√Ñ√∂‚àö¬¢¬¨√ü ‚âà√≠¬¨‚à´ | |
11. |
____ sigma limits are recommended for modified control charts. |
A. | 4 |
B. | 2 |
C. | 3 |
D. | 6 |
Answer» C. 3 | |