Mechanical Metallurgy Mock Test 9

1. The stress-strain curve for hot worked metal which has undergone dynamic recrystallization is _______

2. The steel balls for ball bearing is produced by which of the following method?

3. The following figure shows a cylindrical sample under compression, and there is a friction between the workpiece and the machine. The no deformed area is indicated correctly in the below figure.

4. The following figure shows a rolled sheet (After rolling) The region A shows the end of plate and B shows the center of plate, the nature of forces in this region will be ________

5. The improvement in the strength of the material is much more in hot working compared to cold working.

6. If narrower the flash width _________ will be the pressure in the die as well as vice versa.

7. Which of the following is not a method of analysis for metal deformation?

8. Find the angle of contact for an arc on a roll having the maximum reduction equal to 2 mm and roll diameter 800 mm?

9. In a multi-pass rolling operation, the temperature in the last pass is kept low. This is because it is associated with ___________

10. The counterblow hammer is competent solution to reduce the problem of ground shock and noise while using the forging hammer.