MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the load that the Vickers hardness test can carry? |
| A. | 10 kg |
| B. | 120 kg |
| C. | 150 kg |
| D. | 3000 kg |
| Answer» C. 150 kg | |
| 2. |
Which of the following scales are used for testing of very soft thermoplastics? |
| A. | A |
| B. | E |
| C. | H |
| D. | R |
| Answer» E. | |
| 3. |
Which materials are to be tested using an F-scale? |
| A. | Copper and brass |
| B. | Case hardened steels |
| C. | Bronze, gunmetal, and beryllium copper |
| D. | Thermoplastics |
| Answer» B. Case hardened steels | |
| 4. |
How is the Vicker’s hardness number defined as? |
| A. | 1.8544PD2 |
| B. | 1.8544P 1/D2 |
| C. | 8.544P 1/D2 |
| D. | 8.544PD2 |
| Answer» C. 8.544P 1/D2 | |
| 5. |
What is the angle of indenter in Vicker’s hardness test? |
| A. | 96 degrees |
| B. | 110 degrees |
| C. | 136 degrees |
| D. | 150 degrees |
| Answer» D. 150 degrees | |
| 6. |
How does the Vicker’s hardness test differ from Brinell’s? |
| A. | Duration of indentation |
| B. | Type of indenter |
| C. | Materials to be tested |
| D. | Load applied |
| Answer» C. Materials to be tested | |
| 7. |
WHICH_OF_THE_FOLLOWING_SCALES_ARE_USED_FOR_TESTING_OF_VERY_SOFT_THERMOPLASTICS??$ |
| A. | A |
| B. | E |
| C. | H |
| D. | R |
| Answer» E. | |
| 8. |
What_is_the_load_that_the_Vickers_hardness_test_can_carry?$ |
| A. | 10 kg |
| B. | 120 kg |
| C. | 150 kg |
| D. | 3000 kg |
| Answer» C. 150 kg | |
| 9. |
Which materials are to be tested using a F-scale? |
| A. | Copper and brass |
| B. | Case hardened steels |
| C. | Bronze, gunmetal, and beryllium copper |
| D. | Thermoplastics |
| Answer» B. Case hardened steels | |
| 10. |
Which of the following is not a Rockwell hardness scale? |
| A. | A |
| B. | E |
| C. | N |
| D. | K |
| Answer» D. K | |
| 11. |
The indenter used in C-scale of Rockwell hardness test is named _________ |
| A. | CABAL |
| B. | BRALE |
| C. | BRALL |
| D. | IDOL |
| Answer» C. BRALL | |
| 12. |
How is the Vicker’s hardness number defined as?$ |
| A. | 1.8544PD<sup>2</sup> |
| B. | 1.8544P 1/D<sup>2</sup> |
| C. | 8.544P 1/D<sup>2</sup> |
| D. | 8.544PD<sup>2</sup> |
| Answer» C. 8.544P 1/D<sup>2</sup> | |
| 13. |
What is the angle of indenter in Vicker’s hardness test?$ |
| A. | 96 degrees |
| B. | 110 degrees |
| C. | 136 degrees |
| D. | 150 degrees |
| Answer» D. 150 degrees | |
| 14. |
How does the Vicker’s hardness test differ from Brinell’s?$ |
| A. | Duration of indentation |
| B. | Type of indenter |
| C. | Materials to be tested |
| D. | Load applied |
| Answer» C. Materials to be tested | |
| 15. |
For how long is the load maintained in a Brinell test? |
| A. | 2-4 seconds |
| B. | 10-15 seconds |
| C. | 20-30 seconds |
| D. | 45-55 seconds |
| Answer» C. 20-30 seconds | |
| 16. |
What kind of indenter is used in a Brinell test? |
| A. | Diamond cone |
| B. | Steel ball |
| C. | Pen dot |
| D. | Long tube |
| Answer» C. Pen dot | |