Explore topic-wise MCQs in Statistical Quality Control.

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