Explore topic-wise MCQs in Statistical Quality Control.

This section includes 15 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.

Process capability can be expressed as a percentage outside of the specifications.

A. True
B. False
Answer» B. False
Discussion
2.

Product characterization cannot be used for the determination of the state of the statistical control of the process by which, the products are made.

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

Which of these is not one of the primary techniques used to find out the process capability?

A. Histogram
B. Probability plots
C. Control charts
D. Acceptance sampling
Answer» E.
Discussion
4.

In product characterization, we cannot say anything about _____________

A. Dynamic behavior of the process
B. Distribution of quality characteristic
C. Process yield
D. Fraction conforming to specifications
Answer» B. Distribution of quality characteristic
Discussion
5.

When in PCA, we have only the sample unit of product without any direct observation of the process or the time history of the production, the PCA is also called ____________

A. Product inspection
B. Product characterization
C. Product sampling
D. Process design
Answer» C. Product sampling
Discussion
6.

Which of these is not a major use of the PCA (Process Capability Analysis)?

A. Prediction of how well the process will hold the tolerances
B. Reduction of variability in process
C. Establishing an interval between sampling
D. Stating the need of the Acceptance sampling
Answer» E.
Discussion
7.

When we don’t have the mean, spread and the shape of probability distribution of one CTQ characteristic of a process, we can use ___________ for process capability analysis.

A. Acceptance sampling
B. Design of experiment
C. p-chart
D. Specifications on the quality characteristic
Answer» E.
Discussion
8.

Which of these is not necessary to find the process capability?

A. Mean
B. Standard deviation
C. Spread
D. Design of Experiments
Answer» E.
Discussion
9.

0.27 percent outside the normal tolerances can be obtained using ____________

A. 6-sigma both sides of mean
B. 3-sigma both sides of mean
C. 2-sigma both sides of mean
D. 8-sigma both sides of mean
Answer» C. 2-sigma both sides of mean
Discussion
10.

μ – 3σ, is the LNTL for ______________

A. 3-sigma spread in distribution of CTQ characteristic
B. 1-sigma spread in distribution of CTQ characteristic
C. 6-sigma spread in distribution of CTQ characteristic
D. 4-sigma spread in distribution of CTQ characteristic
Answer» D. 4-sigma spread in distribution of CTQ characteristic
Discussion
11.

For a six–sigma spread in the distribution of the product quality characteristic, the upper natural control limit will fall at _____________

A. μ + 2σ
B. μ + 3σ
C. μ + 4σ
D. μ + 6σ
Answer» C. μ + 4σ
Discussion
12.

Which of these is used as the measure of process capability?

A. Process mean
B. Process standard deviation
C. Sample standard deviation
D. Six-sigma spread in the distribution of the product quality characteristic
Answer» E.
Discussion
13.

Determining process capability is an important part of _____________ step of DMAIC process.

A. Analyze
B. Define
C. Control
D. Measure
Answer» B. Define
Discussion
14.

The process of usage of statistical methods to determine the variability in a process and to reduce or completely eliminating the variability, is called ________________

A. Process capability
B. Process capability Analysis
C. Process variability
D. Process variability analysis
Answer» C. Process variability
Discussion
15.

Process capability refers to ___________

A. Changes in process
B. Variability in process
C. Uniformity in process
D. Unevenness in process
Answer» D. Unevenness in process
Discussion