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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. |
Proper type of control charts to be prepared, must be chosen after choosing the point in the process at which the control charts will be implemented. |
A. | True |
B. | False |
Answer» C. | |
2. |
Before choosing which CTQ-characteristic to be controlled, control chart must be chosen. |
A. | True |
B. | False |
Answer» C. | |
3. |
In regulated industries, where process stability and process capability must be continually demonstrated __________ charts are used. |
A. | x And s |
B. | p |
C. | c |
D. | u |
Answer» B. p | |
4. |
When we want to troubleshoot the out-of-control process, we use _________ control charts. |
A. | x |
B. | p |
C. | c |
D. | u |
Answer» B. p | |
5. |
When a change in product specification is desired, which of these control charts should be used? |
A. | p-charts |
B. | x And R charts |
C. | c-charts |
D. | u-charts |
Answer» C. c-charts | |
6. |
Which of these is most economical in long term? |
A. | x And R charts |
B. | c-chart |
C. | p-chart |
D. | u-chart |
Answer» B. c-chart | |
7. |
The efficiency of p-charts is __________ the efficiency of the x bar and R charts when p is closer to 0.5. |
A. | Equal to |
B. | More than |
C. | Less than |
D. | Non-predictable |
Answer» C. Less than | |
8. |
The efficiency of variable control charts is _________ the efficiency of the p-charts when p is small and far away from 0.5. |
A. | Lesser than |
B. | More than |
C. | Equal to |
D. | Non-predictable |
Answer» C. Equal to | |
9. |
X bar and R charts are __________ indicators of trouble. |
A. | Trailing |
B. | Inferior |
C. | Leading |
D. | Secondary |
Answer» D. Secondary | |
10. |
Which of these is an advantage of variable control chart? |
A. | Numerous quality characteristics considered at a time |
B. | To achieve the information very easily about the mean and variability |
C. | To have analyses of units nonconforming |
D. | To analyze the defects in one unit |
Answer» C. To have analyses of units nonconforming | |
11. |
Which of these is an advantage of attribute control chart? |
A. | Much useful information about the process performance can be gathered |
B. | Mean and variability is obtained directly |
C. | One quality characteristic is observed at a time |
D. | Several quality characteristics can be considered jointly |
Answer» E. | |
12. |
Which of the charts are more efficient to find out variability in the data when the sample size is more than 10? |
A. | R-chart |
B. | c-chart |
C. | s-chart |
D. | p-chart |
Answer» D. p-chart | |
13. |
Which of the control chart is used to find out variability in the data? |
A. | s-chart |
B. | x-chart |
C. | p-chart |
D. | c-chart |
Answer» B. x-chart | |
14. |
What type of control chart can be used to plot “number of defectives in the output of a process for making a machine part” data? |
A. | p-chart |
B. | c-chart |
C. | u-chart |
D. | s-chart |
Answer» B. c-chart | |
15. |
The number of defects per unit of a casting process output, is plotted on _____________ chart. |
A. | x bar |
B. | s-chart |
C. | u-chart |
D. | p-chart |
Answer» D. p-chart | |