Mechanical Metallurgy Mock Test 10

10%

Question 1 of 10

1. The total number of sheets which can be rolled together in a four high mill is equal to _________

Question 1 of 10

Question 2 of 10

2. The specific roll pressure is defined as _______________ in the rolling machine.

total rolling load

total load separating force

rolling load/roll diameter

rolling load/contact area

Question 2 of 10

Question 3 of 10

3. If the sheet is rolled along certain direction of rolling, the grain will deform in the sheet. The maximum deformation of grains occurs at the _____________

surface of sheet

end of sheet

beginning of sheet

centre of sheet

Question 3 of 10

Question 4 of 10

4. The maximum stress/force that can be applied on the billet is more in indirect extrusion compared to direct extrusion.

True

False

Question 4 of 10

Question 5 of 10

5. The production of the toothpaste tube is made by which of the following process?

Sheet metal forming

Forging

Impact extrusion

Tube extrusion

Question 5 of 10

Question 6 of 10

6. Which of the following mill action is like more of forging than the rolling of the metal?

Planetary mill

Cluster mill

Two high mill

Sendzimir mill

Question 6 of 10

Question 7 of 10

7. The following schematic diagram shows the metal inside the extrusion chamber. Identify the dead zone.

Question 7 of 10

Question 8 of 10

8. The fir-tree cracking is associate which of the following metal working process?

Rolling

Forging

Casting

Extrusion

Question 8 of 10

Question 9 of 10

9. The temper rolling or skin pass rolling is used to ___________

improve surface finish

improve fatigue strength

refine the grain

eliminate the yield point phenomena

Question 9 of 10

Question 10 of 10

10. The seamless tube is manufactured by which of the following method?

Casting

Extrusion

Stretch forming

Forging

Question 10 of 10