Explore topic-wise MCQs in Statistical Quality Control.

This section includes 18 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 value of process performance index estimate (Pp)?

A. ( frac{USL-LSL}{4s} )
B. ( frac{USL+LSL}{4s} )
C. ( frac{USL-LSL}{6 } )
D. ( frac{USL-LSL}{6s} )
Answer» E.
Discussion
2.

Pp is a ___

A. Process capability ratio
B. Process stability ratio
C. Process prediction index
D. Process performance index
Answer» E.
Discussion
3.

What does usage of s instead of /d2 in the confidence intervals indicate?

A. s=1
B. Process must be in control
C. Process may be in the out-of-control state
D. d<sub>2</sub>&lt;1
Answer» C. Process may be in the out-of-control state
Discussion
4.

Confidence intervals are not needed for ( widehat{C_{pkm}} ).

A. True
B. False
Answer» C.
Discussion
5.

Cpm is the second generation process capability ratio.

A. True
B. False
Answer» B. False
Discussion
6.

Which of these is one of the first generation process capability ratios?

A. C<sub>pk</sub>
B. C<sub>pm</sub>
C. C<sub>pc </sub>
D. C<sub>pu</sub>
Answer» E.
Discussion
7.

Cp is called the _________ generation PCR.

A. First
B. Second
C. Third
D. Fourth
Answer» B. Second
Discussion
8.

Cpkm is also called _________ generation process capability ratio.

A. Third
B. Fourth
C. Second
D. First
Answer» B. Fourth
Discussion
9.

What is the value of in the expression for Cpkm PCR?

A. ( frac{ -T}{6 } )
B. ( frac{ -T}{ } )
C. ( frac{ +2T}{3 } )
D. ( frac{ +T}{6 } )
Answer» C. ( frac{ +2T}{3 } )
Discussion
10.

What is the value of Cpkm process capability ratio?

A. (C_{pkm}= frac{C_{pk}}{ sqrt{1- }} )
B. (C_{pkm}= frac{C_{pk}}{ sqrt{1+ ^2}} )
C. (C_{pkm}= frac{C_{pk}}{ sqrt{1+ }} )
D. (C_{pkm}= frac{C_{pk}}{ sqrt{1- ^2}} )
Answer» C. (C_{pkm}= frac{C_{pk}}{ sqrt{1+ }} )
Discussion
11.

What is the value of Cpm when the value =T?

A. C<sub>pm</sub>=1
B. C<sub>pm</sub>=0
C. C<sub>pm</sub>=C<sub>p</sub>
D. C<sub>pm</sub>&lt;C<sub>p</sub>
Answer» D. C<sub>pm</sub>&lt;C<sub>p</sub>
Discussion
12.

What is the value of Cpm when the value | -T| ?

A. 1
B. 0
C.
D. -
Answer» C.
Discussion
13.

What is the value of V in the expression of the estimate of Cpm Process Capability Ratio?

A. ( frac{ bar{x}-T}{s} )
B. ( frac{ bar{x}+T}{s} )
C. ( frac{ bar{x}-T}{s^2} )
D. ( frac{ bar{x}-T}{ } )
Answer» B. ( frac{ bar{x}+T}{s} )
Discussion
14.

If standard values are not given, the value of Cpm is estimated by expression _____

A. ( widehat{C_{pm}}= frac{C_p}{ sqrt{1+V^2}} )
B. ( widehat{C_{pm}}= frac{C_p}{ sqrt{1-V}} )
C. ( widehat{C_{pm}}= frac{C_p}{ sqrt{1+V}} )
D. ( widehat{C_{pm}}= frac{C_p}{ sqrt{1-V^2}} )
Answer» B. ( widehat{C_{pm}}= frac{C_p}{ sqrt{1-V}} )
Discussion
15.

What is value of in the expression for Cpm Process Capability Ratio?

A. ( frac{ +T}{3 } )
B. ( frac{ -T}{6 } )
C. ( frac{ +T}{ } )
D. ( frac{ -T}{ } )
Answer» E.
Discussion
16.

Which of these is having same value as Cpm?

A. ( frac{USL-LSL}{6 sqrt{ ^2-( -T)^2}} )
B. ( frac{USL+LSL}{6 sqrt{ ^2-( -T)^2}} )
C. ( frac{USL-LSL}{6 sqrt{ ^2+( -T)^2}} )
D. ( frac{USL+LSL}{6 sqrt{ ^2+( -T)^2}} )
Answer» D. ( frac{USL+LSL}{6 sqrt{ ^2+( -T)^2}} )
Discussion
17.

Which of these is equal to the squared value of ?

A. <sup>2</sup>-( +T)<sup>2</sup>
B. <sup>2</sup>+( -T)<sup>2</sup>
C. <sup>2</sup>-( -T)<sup>2</sup>
D. <sup>2</sup>+( +T)<sup>2</sup>
Answer» C. <sup>2</sup>-( -T)<sup>2</sup>
Discussion
18.

What is the value of in the expression of Cpm process capability ratio?

A. ( = sqrt{[E big {x-T)^2]} )
B. ( = sqrt{E[{x+T}^2]} )
C. ( = sqrt{E[(x-T)^2]} )
D. ( = sqrt{E[(x+T)^2]} )
Answer» B. ( = sqrt{E[{x+T}^2]} )
Discussion