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This section includes 15 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. |
Variable control charts can also be applied on attributes but their efficiency will be less as compared to the attribute control charts. |
A. | True |
B. | False |
Answer» C. | |
2. |
The fraction nonconforming says the same thing as the term defects per unit. |
A. | True |
B. | False |
Answer» C. | |
3. |
If standards are not given, the estimate of the unknown fraction nonconforming of the process, is evaluated by formula ___________ |
A. | \(\bar{p}=\frac{[∑_{i=1}^{m-1} D_i]}{m}\) |
B. | \(\bar{p}=\frac{[∑_{i=1}^{n-1} D_i]}{mn}\) |
C. | \(\bar{p}=\frac{[∑_{i=1}^{m} D_i]}{mn}\) |
D. | \(\bar{p}=\frac{[∑_{i=1}^{n} D_i]}{mn}\) |
Answer» D. \(\bar{p}=\frac{[∑_{i=1}^{n} D_i]}{mn}\) | |
4. |
If there are 9 items defective in the sample size of 28, what will be the value that the fraction nonconforming chart, will represent? |
A. | 0.2971 |
B. | 0.3214 |
C. | 0.6328 |
D. | 0.8172 |
Answer» C. 0.6328 | |
5. |
The center line of control chart of fraction nonconforming represents the value equal to ____________ |
A. | Fraction nonconforming |
B. | Process mean |
C. | Process standard deviation |
D. | Sample mean |
Answer» B. Process mean | |
6. |
The sample fraction nonconforming is expressed as __________ |
A. | \(\hat{p}=\frac{2D}{n}\) |
B. | \(\hat{p}=\frac{D}{3n}\) |
C. | \(\hat{p}=\frac{D}{2n}\) |
D. | \(\hat{p}=\frac{D}{n}\) |
Answer» E. | |
7. |
The ratio of the number of nonconforming items in a population to total number of items in that population, is called _________ |
A. | Fraction nonconforming |
B. | Fraction of nonconformities |
C. | Fraction of conformities per unit of product |
D. | Fraction of variability |
Answer» B. Fraction of nonconformities | |
8. |
The u charts are also called _________ |
A. | The control chart for nonconformities |
B. | Control charts for fraction nonconforming |
C. | Control charts for conformities per unit |
D. | Control chart for process mean |
Answer» D. Control chart for process mean | |
9. |
The control charts used for the analysis of nonconformities per unit of a product, are called _________ charts |
A. | p |
B. | c |
C. | x |
D. | u |
Answer» E. | |
10. |
The c charts are also called _________ |
A. | The control chart for nonconformities |
B. | Control charts for fraction nonconforming |
C. | Control charts for conformities per unit |
D. | Control chart for process mean |
Answer» B. Control charts for fraction nonconforming | |
11. |
The control chart designed to deal with the defects or nonconformities of a product, is called __________ |
A. | p chart |
B. | c chart |
C. | R chart |
D. | s chart |
Answer» C. R chart | |
12. |
The control chart for fraction nonconforming is also called __________ |
A. | u chart |
B. | c chart |
C. | p chart |
D. | R chart |
Answer» D. R chart | |
13. |
The control chart which relates to the fraction of defective product produced by a manufacturing process, is called _________ |
A. | The control chart for nonconformities |
B. | Control charts for fraction nonconforming |
C. | Control charts for conformities per unit |
D. | Control chart for process mean |
Answer» C. Control charts for conformities per unit | |
14. |
Quality characteristics which are related to only conforming or non conforming products, are called _________ |
A. | Attributes |
B. | Continuous characteristics |
C. | Discrete characteristics |
D. | Variables |
Answer» B. Continuous characteristics | |
15. |
Defectives word has almost same meaning as __________ |
A. | Conforming |
B. | Nonconforming |
C. | Non-defective |
D. | Un-conforming |
Answer» C. Non-defective | |