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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. |
The OC curve of the c-chart is a curve which plots -risk against _______ |
A. | Number of defectives per sample |
B. | True mean number of defects |
C. | Total number of defects |
D. | Demerits per unit |
Answer» C. Total number of defects | |
2. |
What is the value of Zi in the standardized control chart for u-chart with variable sample size? |
A. | ( frac{u_i+ bar{u}}{ sqrt{ frac{ bar{u}}{ bar{n}}}} ) |
B. | ( frac{u_i+ bar{u}}{ sqrt{ frac{ bar{u}}{n_i}}} ) |
C. | ( frac{u_i- bar{u}}{ sqrt{ frac{ bar{u}}{n_i}}} ) |
D. | ( frac{u_i- bar{u}}{ sqrt{ frac{ bar{u}}{ bar{n}}}} ) |
Answer» D. ( frac{u_i- bar{u}}{ sqrt{ frac{ bar{u}}{ bar{n}}}} ) | |
3. |
Which of these is used in the standardized chart for u-chart with variable sample size? |
A. | Z<sub>i</sub> |
B. | M<sub>i</sub> |
C. | U<sub>i</sub> |
D. | A<sub>i</sub> |
Answer» B. M<sub>i</sub> | |
4. |
What is the center line value for the average number of events control chart, when there is no standard given? |
A. | /n |
B. | /3n |
C. | 2 /n |
D. | /2n |
Answer» B. /3n | |
5. |
What is the value of center line of g-chart when there is no standard given? |
A. | ( bar{t}+3 sqrt{ bar{t}} ) |
B. | ( bar{t} ) |
C. | ( bar{t}-3 sqrt{ bar{t}} ) |
D. | ( bar{t}+0.5 sqrt{ bar{t}} ) |
Answer» C. ( bar{t}-3 sqrt{ bar{t}} ) | |
6. |
What is the value of the center line of g-chart? |
A. | (n( frac{1+p}{p}+a) ) |
B. | (n( frac{1-p}{p}+a) ) |
C. | (n( frac{1+p}{p}-a) ) |
D. | (n( frac{1-p}{p}-a) ) |
Answer» C. (n( frac{1+p}{p}-a) ) | |
7. |
What is the value of the Upper control limit for the g-chart? |
A. | (n( frac{1-p}{p}-a)+L sqrt{n(1-p)}{p^2} ) |
B. | (n( frac{1-p}{p}+a)+L sqrt{n(1+p)}{p^2} ) |
C. | (n( frac{1-p}{p}+a)+L sqrt{n(1-p)}{p^2} ) |
D. | (n( frac{1-p}{p}+a)+L sqrt{(1-p)}{p^2} ) |
Answer» D. (n( frac{1-p}{p}+a)+L sqrt{(1-p)}{p^2} ) | |
8. |
What will be the center line value for a Kaminski et al h-chart when standards are given? |
A. | ( frac{1-p}{p}-a ) |
B. | ( frac{1+p}{p}+a ) |
C. | ( frac{1+p}{p}-a ) |
D. | ( frac{1-p}{p}+a ) |
Answer» E. | |
9. |
The control charts developed for the average number of events is generally called ______________ |
A. | g-chart |
B. | h-chart |
C. | s-chart |
D. | s-square-charts |
Answer» C. s-chart | |
10. |
The control chart for total number of events is called ____________ |
A. | g-charts |
B. | R-charts |
C. | h-charts |
D. | c-charts |
Answer» B. R-charts | |
11. |
The 3 sigma upper limit for a control chart for average number of nonconformities per unit, is expressed by ___________ |
A. | UCL= ( bar{u} + 3 sqrt{ frac{ bar{u}}{n}} ) |
B. | UCL= ( bar{u} 3 sqrt{ frac{ bar{u}}{n}} ) |
C. | UCL= ( bar{u} 2 sqrt{ frac{ bar{u}}{n}} ) |
D. | UCL= ( bar{u} frac{3}{2} sqrt{ frac{ bar{u}}{n}} ) |
Answer» B. UCL= ( bar{u} 3 sqrt{ frac{ bar{u}}{n}} ) | |