Explore topic-wise MCQs in Statistical Quality Control.

This section includes 10 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.

The defects which affect the proper working of the unit in the service arena, are called ____________

A. Appearance Defects
B. Functional Defects
C. Specification Defects
D. Aspect defects
Answer» C. Specification Defects
Discussion
2.

What is the value of the center line of the demerits per unit?

A. ( bar{u}+3 sqrt{ bar{u}} )
B. ( bar{u} )
C. ( bar{u}+ frac{1}{2} sqrt{ bar{u}} )
D. ( bar{u}-3 sqrt{ bar{u}} )
Answer» C. ( bar{u}+ frac{1}{2} sqrt{ bar{u}} )
Discussion
3.

The upper control limit for the demerits per unit chart is given by _____

A. UCL = ( bar{u}-3 widehat{ _u} )
B. UCL = ( bar{u}+3 widehat{ _u} )
C. UCL = ( bar{u}+ widehat{ _u} )
D. UCL = ( bar{u}- widehat{ _u} )
Answer» C. UCL = ( bar{u}+ widehat{ _u} )
Discussion
4.

If there are 8, 12, 11, 3, 6 demerits in sample number 1, 2, 3, 4, and 5 respectively, what will be the demerits per units for the mentioned output?

A. 8
B. 11
C. 3
D. 5
Answer» B. 11
Discussion
5.

The number of demerits in a system having ciA,ciB,ciC,and ciD defects in classes A, B, C, and D respectively is expressed by ______ It is assumed that the probability of each defect varies according to a Poisson distribution.

A. d<sub>i</sub> = 100c<sub>iD</sub> + 50c<sub>iB</sub> + 10c<sub>iC</sub> + c<sub>iA</sub>
B. d<sub>i</sub> = 100c<sub>iA</sub> + 50c<sub>iB</sub> + 10c<sub>iC</sub> + c<sub>iD</sub>
C. d<sub>i</sub> = 100c<sub>iB</sub> + 50c<sub>iA</sub> + 10c<sub>iC</sub> + c<sub>iD</sub>
D. d<sub>i</sub> = 100c<sub>iA</sub> + 50c<sub>iC</sub> + 10c<sub>iB</sub> + c<sub>iD</sub>
Answer» C. d<sub>i</sub> = 100c<sub>iB</sub> + 50c<sub>iA</sub> + 10c<sub>iC</sub> + c<sub>iD</sub>
Discussion
6.

Moderate defects are classified into which class of demerit system?

A. Class B
B. Class C
C. Class D
D. Class A
Answer» B. Class C
Discussion
7.

The minor finish, appearance, or quality of work defects are generally classified in _____ of the demerit system.

A. Class A
B. Class D
C. Class C
D. Class B
Answer» C. Class C
Discussion
8.

The minor defects are put into class ____________ of the demerit system.

A. A
B. B
C. C
D. D
Answer» B. B
Discussion
9.

The Class A defects are ____________

A. Moderate
B. Minor
C. Serious
D. Very Serious
Answer» E.
Discussion
10.

In the average sample size approach to design u-chart with variable sample size, which of these is used to calculate the average sample size?

A. ( bar{n}= frac{ sum_{i=0}^m n_i}{m} )
B. ( bar{n}= frac{ sum_{i=1}^m u_i}{2m} )
C. ( bar{n}= frac{ sum_{i=1}^m n_i}{m} )
D. ( bar{n}= frac{ sum_{i=1}^n u_i}{m} )
Answer» D. ( bar{n}= frac{ sum_{i=1}^n u_i}{m} )
Discussion