MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Thickness of sample doesn’t affect the Vickers test. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Yield strength is given as HV/0.3. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What is the hardness of the diamond in VHN? |
| A. | 1000 HV |
| B. | 1200 HV |
| C. | 9000 HV |
| D. | 10000 HV |
| Answer» E. | |
| 4. |
What is Vickers hardness of martensite? |
| A. | 140 VHN |
| B. | 180 VHN |
| C. | 1000 VHN |
| D. | 1200 VHN |
| Answer» D. 1200 VHN | |
| 5. |
WHAT_IS_THE_HARDNESS_OF_THE_DIAMOND_IN_VHN??$ |
| A. | 1000 HV |
| B. | 1200 HV |
| C. | 9000 HV |
| D. | 10000 HV |
| Answer» E. | |
| 6. |
WHAT_IS_VICKERS_HARDNESS_OF_MARTENSITE??$ |
| A. | 140 VHN |
| B. | 180 VHN |
| C. | 1000 VHN |
| D. | 1200 VHN |
| Answer» D. 1200 VHN | |
| 7. |
Thickness of sample doesn’t affect the Vickers test.$# |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Yield strength is given as HV/0.3.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which of the following is an advantage of the Vickers test? |
| A. | Rough surface preparation |
| B. | Cheaper |
| C. | Accurate readings |
| D. | Large floor-standing machine |
| Answer» D. Large floor-standing machine | |
| 10. |
One division of the main scale equals _________ in Vickers test. |
| A. | 0.1 mm |
| B. | 0.01 mm |
| C. | 1.0 mm |
| D. | 0.001 mm |
| Answer» B. 0.01 mm | |
| 11. |
Why Brinell and Vickers hardness test results show similarities? |
| A. | Same material indenter |
| B. | Geometrically similar indentations |
| C. | Applied load is same |
| D. | Same size indenter |
| Answer» C. Applied load is same | |
| 12. |
What is the disadvantage of the Vickers test? |
| A. | Accurate readings |
| B. | One type indenter for all type materials |
| C. | Hardness above 450 BHN can be measured |
| D. | Large floor-standing machines |
| Answer» E. | |
| 13. |
Up to a Vickers hardness of _________ the VHN agrees with the BHN. |
| A. | 30 |
| B. | 100 |
| C. | 350 |
| D. | 1000 |
| Answer» D. 1000 | |
| 14. |
Which standards define Vickers hardness test? |
| A. | ASTM E92-72 |
| B. | ASTME10 |
| C. | ASTME19-74 |
| D. | ASTME334-69 |
| Answer» B. ASTME10 | |
| 15. |
Vickers indenter has _________ angle between opposite faces of a diamond. |
| A. | 90° |
| B. | 120° |
| C. | 136° |
| D. | 180° |
| Answer» D. 180¬¨¬®‚Äö√†√ª | |
| 16. |
___________ Indenter is used in Vickers hardness test. |
| A. | Hardened steel ball |
| B. | Diamond ball |
| C. | Diamond pyramid |
| D. | Tungsten carbide |
| Answer» D. Tungsten carbide | |