Materials Science Mock Test 10

10%

Question 1 of 10

1. Which of the following can be the tensile strength of spinel?

100 MPa

300 Mpa

200 MPa

90 MPa

Question 1 of 10

Question 2 of 10

2. Which of the following is a flexural strength not dependent on?

Specimen width

Force

Length of specimen

Distance between supports

Question 2 of 10

Question 3 of 10

3. Which of the following shows the best fracture strength?

Zircon

Macor

Alumina

There fracture strength are not comparable

Question 3 of 10

Question 4 of 10

4. Which of the following compounds have a coordination number of 8?

Calcium fluoride

Sodium chloride

Zinc blende

Cesium chloride

Question 4 of 10

Question 5 of 10

5. According to the percentage of water absorption in porous silicate ceramic which of the following has fine microstructure?

1.9%

0.4%

2.1%

Question 5 of 10

Question 6 of 10

6. What kind of bonds are present in diamond?

Ionic bond only

Mix of covalent and ionic bond

Metallic bonds

Covalent bond only

Question 6 of 10

Question 7 of 10

7. Ceramics are brittle.

True

False

Question 7 of 10

Question 8 of 10

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

Hardness increases as distance from quenched end increases

Hardness increases as martensite decreases

Hardenability curve is a straight line

Hardness decreases as distance from quenched end increases

Question 8 of 10

Question 9 of 10

9. Which of the following is not a type of annealing?

Tempering

Stress-relief annealing

Full annealing

Spherodizing

Question 9 of 10

Question 10 of 10

10. Which of the point is there in a stress strain curve for a ceramic?

Fracture point

Yield point

Ultimate tensile strength

Limit of proportionality

Question 10 of 10