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This section includes 14 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 DNOM approach does not need the measurements to be taken at all. |
A. | True |
B. | False |
Answer» C. | |
2. |
The standardized control chart approach for short production runs can only be applied on variable control charts. |
A. | True |
B. | False |
Answer» C. | |
3. |
Which of these is correct target value for standardized control chart for fraction nonconforming for shorter production runs? |
A. | p |
B. | np |
C. | c |
D. | R̅ |
Answer» B. np | |
4. |
Which of these is true according to Farnum? |
A. | The coefficient of the variation should be randomly varying |
B. | The coefficient of the variation should be systematically varying |
C. | The coefficient of the variation should be varying, maybe randomly or systematically |
D. | The coefficient of the variation must be constant |
Answer» E. | |
5. |
According to Farnum, the coefficient of variation is _____________ |
A. | \(\frac{σ}{μ}\) |
B. | \(\frac{μ}{σ}\) |
C. | \(\frac{2σ}{μ}\) |
D. | \(\frac{2μ}{σ}\) |
Answer» B. \(\frac{μ}{σ}\) | |
6. |
Standardized control chart approach for short production runs was presented by ____________ |
A. | Rodriguez |
B. | Roberts |
C. | Crowder |
D. | Farnum |
Answer» E. | |
7. |
Tj stands for __________ |
A. | Target value for relative range |
B. | Target value for relative mean |
C. | target value for x bar for each part number |
D. | Target value for tested value of the variable |
Answer» D. Target value for tested value of the variable | |
8. |
Rj is the ____________ |
A. | Target value for range |
B. | Target value for ratios |
C. | Result of jth part |
D. | Ratio of jth part |
Answer» B. Target value for ratios | |
9. |
The term Mi, which is used in the expression of the standard variable used in standardized x bar charts for short production runs, is defined as ___________ |
A. | Average of averages of standard deviations |
B. | Average of original mean measurements |
C. | Moving average |
D. | Exponentially weighted moving average |
Answer» C. Moving average | |
10. |
Which of these has the same difference between the LCL and Center line, and the UCL and the center line? |
A. | Standardized R chart for short production runs |
B. | Standardized x bar charts for short production runs |
C. | Both, standardized x bar and R charts for short production runs |
D. | Neither one of the standardized R chart and standardized x bar charts for short production runs |
Answer» C. Both, standardized x bar and R charts for short production runs | |
11. |
The standardized x bar chart has the value of LCL when used for short production runs is ____________ |
A. | 3 |
B. | –A2 |
C. | 1 |
D. | A2 |
Answer» E. | |
12. |
What is the value of standard variable plotted in the standardized x bar chart for short run production? |
A. | \(\bar{x}_i^s=\frac{\bar{M}_i-T_j}{2\bar{R}_j}\) |
B. | \(\bar{x}_i^s=\frac{\bar{M}_i+T_j}{\bar{R}_j}\) |
C. | \(\bar{x}_i^s=\frac{\bar{M}_i-T_j}{\bar{R}_j}\) |
D. | \(\bar{x}_i^s=\frac{2\bar{M}_i-T_j}{\bar{R}_j}\) |
Answer» D. \(\bar{x}_i^s=\frac{2\bar{M}_i-T_j}{\bar{R}_j}\) | |
13. |
What is the value of LCL of the standardized R chart for short runs? |
A. | D4 |
B. | D2 |
C. | D1 |
D. | D3 |
Answer» E. | |
14. |
What is the UCL of the standardized R chart for short production runs? |
A. | D4 |
B. | D5 |
C. | D1 |
D. | D2 |
Answer» B. D5 | |