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. |
Diamond indenter is known as ‘Brale indenter’. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
In A scale, steel ball indenter is used. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
What is the hardness of martensite? |
| A. | 40 HRB |
| B. | 64 HRB |
| C. | 40 HRC |
| D. | 64 HRC |
| Answer» E. | |
| 4. |
What is the hardness of low brass? |
| A. | HRB 40 |
| B. | HRB 55 |
| C. | HRC 55 |
| D. | HRC 60 |
| Answer» C. HRC 55 | |
| 5. |
WHAT_IS_THE_HARDNESS_OF_LOW_BRASS??$ |
| A. | HRB 40 |
| B. | HRB 55 |
| C. | HRC 55 |
| D. | HRC 60 |
| Answer» C. HRC 55 | |
| 6. |
In A scale, steel ball indenter is used.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
What_is_the_hardness_of_martensite?$ |
| A. | 40 HRB |
| B. | 64 HRB |
| C. | 40 HRC |
| D. | 64 HRC |
| Answer» E. | |
| 8. |
Diamond_indenter_is_known_as_‘Brale_indenter’.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which scale is used to test softer materials? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 10. |
Hardened steel is tested on the C scale with ________ indenter and a _______ kg major load. |
| A. | Diamond, 100 |
| B. | Diamond, 150 |
| C. | 1.6 mm steel ball, 100 |
| D. | 3.2 mm steel ball, 150 |
| Answer» C. 1.6 mm steel ball, 100 | |
| 11. |
How much penetration is indicated by each division in dial in Rockwell test? |
| A. | 0.2 mm |
| B. | 0.02 mm |
| C. | 0.002 mm |
| D. | 0.0002 mm |
| Answer» D. 0.0002 mm | |
| 12. |
What minimizes the amount of surface preparation in Rockwell test? |
| A. | Minor load |
| B. | Indenter surface |
| C. | Indenter geometry |
| D. | Heat-treatment |
| Answer» B. Indenter surface | |
| 13. |
What is a limitation of the Rockwell test? |
| A. | Slow speed |
| B. | Personal error |
| C. | Bigger size of indentation |
| D. | Different indenters |
| Answer» E. | |
| 14. |
A minor load of _________ is applied to seat the specimen in the Rockwell test. |
| A. | 1 kg |
| B. | 5 kg |
| C. | 10 kg |
| D. | 150 kg |
| Answer» D. 150 kg | |
| 15. |
Rockwell test utilizes ___________ a measure of hardness. |
| A. | Load |
| B. | Depth of indentation |
| C. | Diameter of indentation |
| D. | Time of loading |
| Answer» C. Diameter of indentation | |
| 16. |
Which hardness test is most widely used in the US? |
| A. | Brinell |
| B. | Vickers |
| C. | Shore |
| D. | Rockwell |
| Answer» E. | |