MCQOPTIONS
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MCQOPTIONS
This section includes 12 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 cylindrical sample of the same diameter but different height is compressed. The stress required in sample with __________ height will require ________ stress than the sample with __________ height. |
| A. | more, more, less |
| B. | more, less, less |
| C. | less, less, more |
| D. | less, more, more |
| Answer» E. | |
| 2. |
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. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
In the forging operation, the sticking friction condition occurs at which location? |
| A. | At entrance |
| B. | In the center |
| C. | At the exit |
| D. | Can occur anywhere |
| Answer» C. At the exit | |
| 4. |
If narrower the flash width _________ will be the pressure in the die as well as vice versa. |
| A. | more |
| B. | less |
| C. | no relationship will pressure |
| D. | the length of the flash decides the pressure, not the width |
| Answer» B. less | |
| 5. |
The lubricated sample shows more barrelling compared to the unlubricated sample which shows less barrelling. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
In case of open die forging, the relative movement of a workpiece with die is lower in lubricated sample than the unlubricated one. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which is the most significant property to determine the enforceability of material? |
| A. | Fracture toughness |
| B. | Resilience |
| C. | Malleability |
| D. | Fatigue strength |
| Answer» D. Fatigue strength | |
| 8. |
The main cause for hot tear in the forging is due to presence of ____________ |
| A. | inclusion |
| B. | cracks |
| C. | pores |
| D. | precipitates |
| Answer» B. cracks | |
| 9. |
In casting, the mold is manufactured with tampered and draft allowance, whereas in closed die forging, the draft allowances are not required. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
The flash is generally obtained in which category of forging process? |
| A. | Open die forging |
| B. | Closed die forging |
| C. | Hydraulic pressing |
| D. | Impact forging |
| Answer» C. Hydraulic pressing | |
| 11. |
The connecting rod of crack shift is made of which of the following process? |
| A. | Casting |
| B. | Forging |
| C. | Rolling |
| D. | Extrusion |
| Answer» C. Rolling | |
| 12. |
The fullering process is related to which of the following metal working process? |
| A. | Casting |
| B. | Forging |
| C. | Rolling |
| D. | Extrusion |
| Answer» C. Rolling | |