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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. |
WHAT_IS_THE_MINIMUM_VALUE_OF_PROCESS_CAPABILITY_RATIO_CP_FOR_ONE_SIDED_SPECIFICATIONS,_FOR_A_NEW_PROCESS_WHICH_IS_NORMALLY_DISTRIBUTED??$ |
A. | 1.45 |
B. | 1.19 |
C. | 1.72 |
D. | 1.5 |
Answer» B. 1.19 | |
2. |
Which of these is a necessary assumption made for the calculation of the PCR Cp?$ |
A. | The quality characteristic has a normal distribution |
B. | The quality characteristic has a lognormal distribution |
C. | The quality characteristic has an exponential distribution |
D. | The quality characteristic has a Poisson distribution |
Answer» B. The quality characteristic has a lognormal distribution | |
3. |
If the quality characteristic in consideration is a strength parameter of the existing process, what will be the minimum value of Cp for two sided specifications for this?$ |
A. | 1.22 |
B. | 1.52 |
C. | 1.50 |
D. | 1.36 |
Answer» D. 1.36 | |
4. |
For the calculation of the PCR Cp the process mean must be centered in the case of two-sided specifications. |
A. | True |
B. | False |
Answer» B. False | |
5. |
For calculating the PCR Cp, the process should be in statistical control. |
A. | True |
B. | False |
Answer» B. False | |
6. |
What is the value of process fallout in defectives ppm for one sided specifications of a PCR Cp= 1.10? |
A. | 484 |
B. | 201 |
C. | 2700 |
D. | 100 |
Answer» B. 201 | |
7. |
What is the minimum two – sided specification PCR for the safety parameter for a new process?$ |
A. | 1.48 |
B. | 1.45 |
C. | 1.67 |
D. | 1.32 |
Answer» D. 1.32 | |
8. |
What is generally the minimum value of two sided specification PCR Cp for a existing process? |
A. | 1.11 |
B. | 1.33 |
C. | 1.89 |
D. | 1.60 |
Answer» C. 1.89 | |
9. |
A correct interpretation of the PCR Cp does not need the consideration of ____ of process. |
A. | Operator |
B. | Mean |
C. | Variance |
D. | Stability |
Answer» B. Mean | |
10. |
A process capability ratio Cp=_____ indicates the fallout rate of 1 ppm for one-sided specifications for a normally distributed process. |
A. | 1.2 |
B. | 1.8 |
C. | 1.9 |
D. | 1.6 |
Answer» E. | |
11. |
A PCR Cp=1.00 indicates the fallout rate of ____ ppm for two-sided specifications. |
A. | 2 |
B. | 7 |
C. | 967 |
D. | 2700 |
Answer» E. | |
12. |
The process fallout (in ppm) ____ with increase in the process capability ratio Cp, for a normally distributed process. |
A. | Increases |
B. | Decreases |
C. | Remains same |
D. | Can’t be described an increase or decrease |
Answer» C. Remains same | |
13. |
PCR is a measure of ___ |
A. | The ability of the process to manufacture the products that meet the specifications |
B. | The ability of the operator to remove the variability |
C. | The probability of the mean to be equal to the USL |
D. | The probability of the mean to be equal to the LSL |
Answer» B. The ability of the operator to remove the variability | |
14. |
If the LSL of the quality characteristic increases, the process capability ratio Cp will ___ |
A. | Increase |
B. | Decrease |
C. | Will remain same |
D. | Can’t say (can increase as well as decrease) |
Answer» C. Will remain same | |