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.

An equipment can be more precise but not accurate at the same time.

A. True
B. False
Answer» B. False
2.

Even if the instantaneous value measured for a dimension by a gauge is not equal to the true value, but the gauge can still be accurate.

A. True
B. False
Answer» B. False
3.

The more the gauge capability, the more are the ____________

A. Tolerances
B. Specifications
C. Chances of rejection
D. Chances of no error in measurements
Answer» E.
4.

The standard model for a gauge R & R study is also called ____________

A. Random effects model analysis of variance
B. Continuous effects model analysis of variance
C. Discrete effects model analysis of variance
D. Attribute effects model analysis of variance
Answer» B. Continuous effects model analysis of variance
5.

The picture indicates gauge measurements where the dark circle is true value and the dots as observed value. This picture shows _____

A. More accuracy, less precision
B. Neither accuracy nor precision
C. More precision, less accuracy
D. High accuracy and precision
Answer» B. Neither accuracy nor precision
6.

Which of these tells about the inherent variability of the gauge?

A. Accuracy
B. Precision
C. DR ratio
D. SNR
Answer» C. DR ratio
7.

For a gauge to be capable, generally DR must be greater than ___________

A. 1
B. 0.4
C. 0.1
D. 4
Answer» E.
8.

For a measurement system ρp=0.8914. What will be the value of DR for that?

A. 17.416
B. 0.0571
C. 24.46
D. 0.0652
Answer» B. 0.0571
9.

What is the value of DR?

A. DR=\(\frac{1-2ρ_p}{1+ρ_p}\)
B. DR=\(\frac{1+ρ_p}{1-ρ_p}\)
C. DR=\(\frac{1+2ρ_p}{1-ρ_p}\)
D. DR=\(\frac{1-ρ_p}{1+ρ_p}\)
Answer» E.
10.

What is the full-form of DR in the context of gauge capability?

A. Decrease rate
B. Direction ratios
C. Discrimination ratios
D. Dimension rates
Answer» D. Dimension rates
11.

Which of these is not one of the gauge capability ratios?

A. SNR
B. Cp
C. ρM
D. ρp
Answer» E.
12.

If the estimate of pp is 0.9214, what will be the estimate of SNR?

A. 4.84
B. 6.87
C. 9.12
D. 2.13
Answer» B. 6.87
13.

What is the correct definition of SNR?

A. The number of signals for 30 noise indications on control chart
B. The number of signals for single noise indication on control chart
C. The number of signals with no noise from the measurements
D. The number of distinct levels or categories that can be reliably obtained from the measurements
Answer» E.
14.

SNR is equal to _________

A. \(\sqrt{\frac{2ρ_p}{1-ρ_p}}\)
B. \(\sqrt{\frac{3ρ_p}{1-ρ_p}}\)
C. \(\sqrt{\frac{ρ_p}{1-ρ_p}}\)
D. \(\frac{2ρ_p}{1-ρ_p}\)
Answer» B. \(\sqrt{\frac{3ρ_p}{1-ρ_p}}\)
15.

SNR represents __________

A. Sign to noise ratio
B. Sample to nonconforming ratio
C. Size to noise ratio
D. Signal to noise ratio
Answer» E.