Explore topic-wise MCQs in Statistical Quality Control.

This section includes 8 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 should be plotted on the x bar chart?

A. Counts
B. Defects
C. Problems Solved
D. Measurements
Answer» E.
Discussion
2.

A permanent change in the sample size is made only because of cost or because has exhibited good stability and fewer resources are allocated for process monitoring.

A. True
B. False
Answer» B. False
Discussion
3.

If the means for sample 1 to 4 for a process are, 12.67, 22.32, 14.53, 12.11; what value will be the center line of chart indicating?

A. 15.2
B. 15.4
C. 14.8
D. 14.9
Answer» C. 14.8
Discussion
4.

A mixture pattern in the control chart points is exhibited when __________ occurs.

A. Operator fatigue
B. Change of raw materials
C. Continuous wear of tool
D. Adjustments too often responding to random variation
Answer» E.
Discussion
5.

Slope of OC curve for x bar chart will _________ when sample size is increased.

A. Decrease
B. Increase
C. Remain same
D. Decrease then increase
Answer» C. Remain same
Discussion
6.

If - risk of any process is 0.75, what will be the ARL for that process?

A. 4
B. 1.33
C. 0.86
D. 2
Answer» B. 1.33
Discussion
7.

The probability of not detecting an in-control shift of the mean of the process is said to be the _____

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

The assumption that links normality to the control charts is ___________

A. The underlying distribution of the quality characteristic is normal
B. The normal mean will be equal to the process mean
C. The normal distribution is not the correct distribution for all the quality characteristic
D. Every distribution is a part of normal distribution
Answer» B. The normal mean will be equal to the process mean
Discussion