Materials Science Practice Test 10

1. According to the percentage of water absorption in dense silicate ceramic which of the following is has fine microstructure?

2. Schottky and Frenkel defects are __________

3. What is the cation to anion ratio for a ceramic having coordination number 6?

4. For edge flaws to occur which of the following should be the value of constant in stress intensity factor formula?

5. Brick having high porosity will have the ability to resist frost.

6. For zircon for the same flaw size, the intensity factor is more than alumina.

7. Which of the following is defined as the ability of the structure to transform into martensite?

8. Silicon carbide is ductile.

9. In a hardnability curve which of the following is true:

10. Ceramics are brittle.