MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Brinell hardness numbers of materials are identical to ________ hardness numbers. |
| A. | Set method |
| B. | Extension under load |
| C. | Shore scleroscope |
| D. | Vickers |
| Answer» E. | |
| 2. |
In case of shore scleroscope hardness, the number considered is the average of __________ determinations. |
| A. | 5 |
| B. | 26 |
| C. | 1 |
| D. | 333 |
| Answer» B. 26 | |
| 3. |
Which if the following is suggested in the shore scleroscope test to obtain the exact value? |
| A. | Instrument should be in sunlight |
| B. | Instrument should be spray painted |
| C. | Instrument should be fixed rigidly |
| D. | Instrument should be in sleeping position |
| Answer» D. Instrument should be in sleeping position | |
| 4. |
The shore scleroscope hardness test is carried out by ________ a tiny diamond-pointed hammer from a particular altitude and comparing the altitude of rebound to a standard test material. |
| A. | inserting |
| B. | cutting |
| C. | smoothly pressing |
| D. | dropping |
| Answer» E. | |
| 5. |
The loading used for a homogenous specimen in the bucket s hardness test is _______ |
| A. | 30kg |
| B. | 500kg |
| C. | 5kg |
| D. | 13kg |
| Answer» B. 500kg | |
| 6. |
The penetrator in the Vickers hardness test is a pyramid that is squarely based and has an included angle of _______ |
| A. | 206 |
| B. | 15 |
| C. | 136 |
| D. | 23 |
| Answer» D. 23 | |
| 7. |
The Vickers hardness test consists of a _________ penetrator. |
| A. | diamond |
| B. | steel ball |
| C. | carbon |
| D. | iron |
| Answer» B. steel ball | |
| 8. |
Similar hardness testing machines give the exact same results. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
What should be done to avoid deflection caused by depression? |
| A. | Plating |
| B. | Unique direction |
| C. | Smooth surface |
| D. | Required edge distance |
| Answer» E. | |
| 10. |
Which of the following is not a process or property that influences the hardness of a material? |
| A. | Buffing |
| B. | Storing |
| C. | Porous areas |
| D. | Decarburizing |
| Answer» C. Porous areas | |