Explore topic-wise MCQs in Statistical Quality Control.

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