MCQOPTIONS
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MCQOPTIONS
This section includes 11 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 cemented carbide tools wear the most at ___________ |
| A. | high speed |
| B. | low speed |
| C. | intermediate speed |
| D. | discontinuous change of speed |
| Answer» C. intermediate speed | |
| 2. |
The binding material for carbide-based tools is _________ |
| A. | iron |
| B. | cobalt |
| C. | lead |
| D. | zinc |
| Answer» C. lead | |
| 3. |
In the electro-discharge machining operation, the section thickness should be low to work efficiently. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
In which of the following cutting process, the abrasive slurry is used as a medium of cutting? |
| A. | Electro discharge |
| B. | Plasma arc cutting |
| C. | Ultrasonic cutting |
| D. | Laser cutting |
| Answer» D. Laser cutting | |
| 5. |
The steel balls for ball bearing is produced by which of the following method? |
| A. | Casting |
| B. | Rolling |
| C. | Spinning |
| D. | Cold heading |
| Answer» E. | |
| 6. |
The tumbling is the process of _____________ |
| A. | increasing the diameter of the parts |
| B. | decreasing the diameter of the parts |
| C. | cleaning the surface of the workpiece |
| D. | providing the protective coating to the surface |
| Answer» D. providing the protective coating to the surface | |
| 7. |
Which of the following metal working process produces the preferred orientation of grain in the workpiece? |
| A. | Forging |
| B. | Rolling |
| C. | Piercing |
| D. | Sheet metal forming |
| Answer» C. Piercing | |
| 8. |
Which of the following statement about cold working is not true? |
| A. | Surface finish improves |
| B. | Mechanical strength increases |
| C. | Grain size remains the same |
| D. | Number of dislocations increases |
| Answer» D. Number of dislocations increases | |
| 9. |
The improvement in the strength of the material is much more in hot working compared to cold working. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following event does not occur in the hot working of the metal? |
| A. | Recrystallization |
| B. | Recovery |
| C. | Grain refinement |
| D. | Twinning |
| Answer» E. | |
| 11. |
In the metalworking process, the stress, in the range as shown by engineering stress-strain curve is _______ |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |