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This section includes 13 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. |
IF_THE_AVERAGE_NUMBER_OF_NONCONFORMITIES_IN_A_PRELIMINARY_SAMPLE_OF_A_PROCESS_IS_19.67,_WHICH_OF_THESE_REPRESENTS_THE_VALUE_OF_UCL_FOR_A_C-CHART_FOR_THIS_PROCESS_OUTPUT??$ |
A. | 19.67 |
B. | 6.37 |
C. | 32.97 |
D. | 25.77 |
Answer» D. 25.77 | |
2. |
For c=13.11, what will be the value of LCL for the c-chart?$ |
A. | 23.97 |
B. | 10.86 |
C. | 8.84 |
D. | 2.24 |
Answer» E. | |
3. |
Count rate of a defect is defined as _____________ |
A. | Defects per unit |
B. | Average number of defects per unit |
C. | Total number of nonconformities |
D. | Occurrence of n defects in N number of units |
Answer» E. | |
4. |
The sample for the control chart for nonconformities is assumed to have, a variable sample size, and the sample conformities distributed according to Normal distribution. |
A. | True |
B. | False |
Answer» C. | |
5. |
For a control chart for nonconformities, the sample size can only be 1. |
A. | True |
B. | False |
Answer» C. | |
6. |
The control chart used to inspect the process state by using the average number of nonconformities per unit data, is called ____ |
A. | u-chart |
B. | c-chart |
C. | p-chart |
D. | R-chart |
Answer» B. c-chart | |
7. |
The center line for the control chart for nonconformities is representing the value equal c, which is ____ |
A. | The total number of nonconformities |
B. | The average number of conformities in a preliminary sample |
C. | The total number of nonconforming products |
D. | The total number of conforming products |
Answer» C. The total number of nonconforming products | |
8. |
What will be the value of the 3-sigma Upper control limit for the c chart when standard is given? |
A. | UCL = c + 3‚àöc |
B. | UCL = c – √c |
C. | UCL = c + ‚àöc |
D. | UCL = c + 2‚àöc |
Answer» B. UCL = c ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇc | |
9. |
Which of these is not an assumption of the c-chart? |
A. | Number of potential locations for nonconformities should be large |
B. | Probability of occurrence of nonconformities should be small |
C. | Probability of occurrence of nonconformities should be variable |
D. | Probability of occurrence of nonconformities should be constant |
Answer» D. Probability of occurrence of nonconformities should be constant | |
10. |
Which of these is an assumption made for designing a control chart for noncorformities? |
A. | Normal Distribution |
B. | Poisson Distribution |
C. | Lognormal Distribution |
D. | Weibull Distribution |
Answer» C. Lognormal Distribution | |
11. |
The c-control chart is plotted for ______ |
A. | Fraction nonconforming |
B. | Number of nonconformities per unit |
C. | Number of defects observed |
D. | Deviation from median of the defects in samples |
Answer» D. Deviation from median of the defects in samples | |
12. |
A nonconforming item has at least ____conformities. |
A. | 4 |
B. | 3 |
C. | 1 |
D. | 2 |
Answer» D. 2 | |
13. |
The event of a specification not satisfied at one point of a product, is called ____ |
A. | Nonconformity |
B. | Non-defectiveness |
C. | Un-specification |
D. | Non-specification |
Answer» B. Non-defectiveness | |