MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Aerospace Materials and Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In which method of determination of yield point is the load applied uniformly on the beam? |
| A. | Divider method |
| B. | High beam method |
| C. | Drop of beam method |
| D. | Extension under load method |
| Answer» D. Extension under load method | |
| 2. |
The yield point of a material does not exist for those materials that have a _____________ region in that space of the stress-strain curve. |
| A. | smooth |
| B. | shift |
| C. | turbulent |
| D. | high |
| Answer» B. shift | |
| 3. |
In which method is there usage of a pair of dividers? |
| A. | Set method |
| B. | Divider method |
| C. | Drop of beam method |
| D. | Dividend method |
| Answer» C. Drop of beam method | |
| 4. |
The yield point can be determined in _____________ |
| A. | wood |
| B. | carbon |
| C. | pure molybdenum |
| D. | mild carbon steel |
| Answer» E. | |
| 5. |
To obtain consistent results in finding properties of materials, the specimen must be/have __________ |
| A. | no scratches |
| B. | straightened |
| C. | washed with methyl |
| D. | bent |
| Answer» B. straightened | |
| 6. |
What is the yield point of a material? |
| A. | Change in the strain of a material |
| B. | The ratio of proof stress to the area |
| C. | The elasticity of a material |
| D. | Point where there is a substantial increase in elongation without a rise in load |
| Answer» E. | |
| 7. |
The modulus of elasticity of steel is ____________ pounds per square inch. |
| A. | 6,500,000 |
| B. | 10,000,000 |
| C. | 30,000,000 |
| D. | 1000,00 |
| Answer» D. 1000,00 | |
| 8. |
If the expected yield strength of a material is 50,000 pounds per square inch and modulus of elasticity is 10,000, what is the normal elongation of the material? |
| A. | 50,000,000 inch per inch gage length |
| B. | 5 inch per inch gage length |
| C. | 50 inch per inch gage length |
| D. | 5 inch per inch gage length |
| Answer» C. 50 inch per inch gage length | |
| 9. |
The second part of specified extensions in the extensions under load method typically involves adding an elongation of ____ inch per inch of gage length. |
| A. | 0.2 |
| B. | 2.02 |
| C. | 0.02 |
| D. | 0.002 |
| Answer» E. | |
| 10. |
The extension under load method is easier to use in finding yield strength because ___________ |
| A. | no necessity to plot a curve |
| B. | it is not easier |
| C. | it is the only method available |
| D. | randomness |
| Answer» B. it is not easier | |
| 11. |
What does length AC in the diagram represent? |
| A. | Yield gage |
| B. | Yield strength |
| C. | Set |
| D. | Yield point |
| Answer» D. Yield point | |
| 12. |
There is often no choice between the two methods of determination of yield strength available, as it is predetermined. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
The yield strength of a material is ___________ |
| A. | the proof stress of a material |
| B. | the strain where the strength of material fails |
| C. | the elongation |
| D. | the particular stress where a material shows specified elongation under a load |
| Answer» E. | |
| 14. |
Tension testing must be accurate within a percentage of ___________ |
| A. | +2% |
| B. | +1% |
| C. | +3/2 % |
| D. | 21% |
| Answer» D. 21% | |
| 15. |
Tension test can give us the yield strength of a material. |
| A. | True |
| B. | False |
| Answer» B. False | |