Materials Science Practice Test 2

1. Burger vectors are relevant to which of the following crystalline defects?

2. For the given magnitude of shift which of the following can cause the formation of an off-center ion?

3. Minimum interplanar spacing required for Bragg’s diffraction is:

4. For destructive interference to take place, the path difference between the two waves should be:

5. The void fraction is the ratio of unfilled volume to total volume of a structure. For ideal metallic FCC crystal, it is:

6. In the powder method of XRD, the intensities of various bright lines are compared to determine the crystal structure. For simple cubic lattice the ratio of intensities at first two maxima are:

7. In the following diagram, what is the direction cosine of the line EB?

8. Which is not a name given to vacancy in some ionic solid?

9. Miller indices for perpendicular planes are always the same.

10. The Miller indices h, k, and l of parallel planes in a BCC lattice should satisfy which of the following X-ray diffraction reflection rules?