MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The HRB scale of Rockwell hardness measurement range from _________ |
| A. | 0-100 |
| B. | 0-50 |
| C. | 20-70 |
| D. | 50-150 |
| Answer» B. 0-50 | |
| 2. |
The Rockwell hardness scale is divided into 100 equal division, with each division representing a depth of __________ |
| A. | 0.002 mm |
| B. | 0.001 mm |
| C. | 0.01 mm |
| D. | 1 mm |
| Answer» B. 0.001 mm | |
| 3. |
Which one of the following represents the cold-worked material for diamond pyramid indentation impression geometry? |
| A. | a) |
| B. | b) |
| C. | c) |
| D. | d) |
| Answer» D. d) | |
| 4. |
In the case of Vicker’s hardness measurement, the softer material will have a higher hardness number, and harder material will have lower VHN. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The Vicker’s hardness number is given as _____________ |
| A. | P/L |
| B. | P/L2 |
| C. | 1.854*P/L2 |
| D. | 1.854*P/L |
| Answer» D. 1.854*P/L | |
| 6. |
The indenter used in the Vicker’s hardness tester is _______________ |
| A. | steel ball with 1.6 mm diameter |
| B. | steel ball with 10mm diameter |
| C. | square-base diamond pyramid |
| D. | square-base flat-pyramid |
| Answer» D. square-base flat-pyramid | |