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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Stereological principles and digital image processing and analysis

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1. 2-D probe is also known as

a: Area probe Explanation

Explanation

b: Plane probe Explanation

Explanation

c: Line probe Explanation

Explanation

d: Point probe Explanation

Explanation

2. Area fraction method calculates

a: Area fraction of particles within the structure Explanation

Explanation

b: Line fraction of dislocations within the structure Explanation

Explanation

c: Volume fraction of the structures within a 2-D plane Explanation

Explanation

d: Point fraction within the structure Explanation

Explanation

3. Point counting method is used for the estimation of

a: Volume fractions and particle densities Explanation

Explanation

b: Line fraction of dislocations Explanation

Explanation

c: Both the above Explanation

Explanation

d: None of the above Explanation

Explanation

4. What is the main objective of stereology in materials characterization?

a: To identify the chemical composition of a sample Explanation

Explanation

b: To obtain 3D information from 2D cross-sections Explanation

Explanation

c: To enhance the surface contrast of microstructures Explanation

Explanation

d: To determine the color of metallographic features. Explanation

Explanation

5. Which type of grid is typically used in the point counting method?

a: Square or rectangular grid Explanation

Explanation

b: Polar coordinate grid Explanation

Explanation

c: Circular grid Explanation

Explanation

d: Random scatter grid Explanation

Explanation

6. Which of the following stereological parameters is used to estimate grain size in a polycrystalline sample?

a: Aspect ratio Explanation

Explanation

b: Volume fraction Explanation

Explanation

c: Line intercept count Explanation

Explanation

d: X-ray diffraction pattern Explanation

Explanation

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