Explore topic-wise MCQs in Statistical Quality Control.

This section includes 12 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.

Which of these does not have the LCL and UCL at 3?

A. Standardized u-chart
B. Standardized R-chart
C. Standardized c-chart
D. Standardized p-chart
Answer» C. Standardized c-chart
2.

Which of these correctly shows the correct values for standardized u-chart in the order of CL, UCL and LCL?

A. 0, 3 and -3
B. 3, 0 and -3
C. 0, -3 and 3
D. -3, 0 and 3
Answer» B. 3, 0 and -3
3.

The center line of the np-chart is at _______

A. -2
B. +2
C. 0
D. 3
Answer» D. 3
4.

The LCL of the standardized p-chart is ________

A. -2
B. +3
C. -1
D. -3
Answer» E.
5.

The upper limit of the standardized c-chart for short production runs is ________

A. 1
B. 2
C. -3
D. +3
Answer» E.
6.

What is the value of the statistic plotted on the standardized np-chart?

A. (z_i= frac{n hat{p}_i+n bar{p}}{ sqrt{n bar{p}(1+ bar{p})}} )
B. (z_i= frac{n hat{p}_i-n bar{p}}{ sqrt{n bar{p}(1+ bar{p})}} )
C. (z_i= frac{n hat{p}_i+n bar{p}}{ sqrt{n bar{p}(1- bar{p})}} )
D. (z_i= frac{n hat{p}_i-n bar{p}}{ sqrt{n bar{p}(1- bar{p})}} )
Answer» E.
7.

What is the standard deviation of the number of nonconformities per unit, when the standardized u-chart is used for monitoring the process?

A. ( sqrt{ frac{ bar{u}}{2n}} )
B. ( sqrt{ frac{ bar{u}}{n}} )
C. ( frac{ sqrt{u}}{n} )
D. ( sqrt{ bar{u}} )
Answer» C. ( frac{ sqrt{u}}{n} )
8.

The attribute ui when plotted on standardized control chart for short production runs, the statistic plotted on the chart has the value equal to __________

A. (Z_i= frac{u_i- bar{u}}{ sqrt{ frac{ bar{u}}{n}}} )
B. (Z_i= frac{u_i+2 bar{u}}{ sqrt{ frac{ bar{u}}{n}}} )
C. (Z_i= frac{u_i+ bar{u}}{ sqrt{ frac{ bar{u}}{n}}} )
D. (Z_i= frac{u_i-2 bar{u}}{ sqrt{ frac{ bar{u}}{n}}} )
Answer» B. (Z_i= frac{u_i+2 bar{u}}{ sqrt{ frac{ bar{u}}{n}}} )
9.

What is the value of the statistic to be plotted on the standardized c-chart which is designed to run in the short production?

A. (Z_i= frac{c_i+2 bar{c}}{ sqrt{ bar{c}}} )
B. (Z_i= frac{c_i-2 bar{c}}{ sqrt{ bar{c}}} )
C. (Z_i= frac{c_i- bar{c}}{ sqrt{ bar{c}}} )
D. (Z_i= frac{c_i+ bar{c}}{ sqrt{ bar{c}}} )
Answer» C. (Z_i= frac{c_i- bar{c}}{ sqrt{ bar{c}}} )
10.

What is the standard deviation value for the standardized c chart used for the short production runs?

A. ( sqrt{c} )
B. ( sqrt{ bar{c}} )
C. ( bar{c} )
D. ( hat{c} )
Answer» C. ( bar{c} )
11.

What is the value of standard deviation for the standardized p-chart for short production runs?

A. ( sqrt{ frac{ bar{p}(1- bar{p})}{n}} )
B. ( sqrt{ frac{ bar{p}(1+ bar{p})}{n}} )
C. ( sqrt{ frac{ bar{p}( bar{p}-1)}{n}} )
D. ( sqrt{ frac{ bar{p}(1- bar{p})}{2n}} )
Answer» B. ( sqrt{ frac{ bar{p}(1+ bar{p})}{n}} )
12.

What is the statistic used to plot on control chart for a standardized p-chart for short production runs?

A. (Z_i= frac{ hat{p}_i+ bar{p}}{ frac{ sqrt{ bar{p}(1+ bar{p})}}{n}} )
B. (Z_i= frac{ hat{p}_i- bar{p}}{ frac{ sqrt{ bar{p}(1- bar{p})}}{n}} )
C. (Z_i= frac{ hat{p}_i- bar{p}}{ frac{ sqrt{ bar{p}(1+ bar{p})}}{n}} )
D. (Z_i= frac{ hat{p}_i+ bar{p}}{ frac{ sqrt{ bar{p}(1- bar{p})}}{n}} )
Answer» C. (Z_i= frac{ hat{p}_i- bar{p}}{ frac{ sqrt{ bar{p}(1+ bar{p})}}{n}} )