MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The velocity of the sheet in the rolling machine keeps on increasing from entering to exit from the rolls. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
A sheet with an initial thickness 30 mm is rolled in two high mills with entering velocity of 5 mm/sec. Find the final thickness of sheet if the exit velocity of rolled sheet is 25 mm/sec? |
| A. | 6mm |
| B. | 5 mm |
| C. | 1 mm |
| D. | 2.5 mm |
| Answer» B. 5 mm | |
| 3. |
A sheet with an initial thickness 30 mm is rolled in two high mills with entering velocity of 5 mm/sec. If the final thickness of sheet is 15 mm find the exit velocity of rolled sheet? |
| A. | 5mm/sec |
| B. | 25mm/sec |
| C. | 10mm/sec |
| D. | 100mm/sec |
| Answer» D. 100mm/sec | |
| 4. |
The passing of the rolled material through the square of oval-shaped cavity reduces the anisotropy of final material. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
The temper rolling or skin pass rolling is used to ___________ |
| A. | improve surface finish |
| B. | eliminate the yield point phenomena |
| C. | improve fatigue strength |
| D. | refine the grain |
| Answer» C. improve fatigue strength | |
| 6. |
An ingot of 30mm thickness needs to reduce into sheet for further application. The best possible method to perform this task is _______ |
| A. | hot rolling |
| B. | cold rolling |
| C. | extrusion |
| D. | compact extrusion |
| Answer» B. cold rolling | |
| 7. |
Which of the following mill action is like more of forging than the rolling of the metal? |
| A. | Two high mill |
| B. | Cluster mill |
| C. | Planetary mill |
| D. | Sendzimir mill |
| Answer» D. Sendzimir mill | |
| 8. |
Find the total number of rolls involved in 2 high four stand rolling mill? |
| A. | 2 |
| B. | 4 |
| C. | 8 |
| D. | 16 |
| Answer» D. 16 | |
| 9. |
The significant advantage of using smaller rolls in the machine is that __________ |
| A. | maximum possible reduction increases |
| B. | power consumption reduces |
| C. | the surface finish of the rolled product improves |
| D. | the problem of roll flattening can be eliminated |
| Answer» C. the surface finish of the rolled product improves | |