MCQOPTIONS
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MCQOPTIONS
This section includes 17 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. |
Sclerometer uses a harden steel ball as an indenter. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Scratch hardness is useful for coatings. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What is the scratch hardness of steel? |
| A. | 3 Mohs |
| B. | 5.5 Mohs |
| C. | 6.5 Mohs |
| D. | 8 Mohs |
| Answer» D. 8 Mohs | |
| 4. |
What is the hardness of quartz? |
| A. | 3 Mohs |
| B. | 5 Mohs |
| C. | 7 Mohs |
| D. | 9 Mohs |
| Answer» D. 9 Mohs | |
| 5. |
___________ scale is widely used in mineralogy. |
| A. | Brinell |
| B. | Shore |
| C. | Mohs |
| D. | Knoop |
| Answer» D. Knoop | |
| 6. |
Which material has the lowest scratch hardness? |
| A. | Diamond |
| B. | Gypsum |
| C. | Talc |
| D. | Topaz |
| Answer» D. Topaz | |
| 7. |
WHAT_IS_THE_HARDNESS_OF_QUARTZ??$ |
| A. | 3 Mohs |
| B. | 5 Mohs |
| C. | 7 Mohs |
| D. | 9 Mohs |
| Answer» D. 9 Mohs | |
| 8. |
Scratch hardness is useful for coatings.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
What_is_the_scratch_hardness_of_steel?$ |
| A. | 3 Mohs |
| B. | 5.5 Mohs |
| C. | 6.5 Mohs |
| D. | 8 Mohs |
| Answer» D. 8 Mohs | |
| 10. |
Sclerometer_uses_a_harden_steel_ball_as_an_indenter. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
___________ scale is widely used in mineralogy? |
| A. | Brinell |
| B. | Shore |
| C. | Mohs |
| D. | Knoop |
| Answer» D. Knoop | |
| 12. |
__________ is the measure of permanent deformation due to friction from a sharp object. |
| A. | Rebound hardness |
| B. | Toughness |
| C. | Tensile strength |
| D. | Scratch hardness |
| Answer» E. | |
| 13. |
What is a right order of hardness? |
| A. | Talc < Quartz < Fluorite |
| B. | Calcite < Apatite < Topaz |
| C. | Diamond < Topaz < Talc |
| D. | Gypsum < Topaz < Quartz |
| Answer» C. Diamond < Topaz < Talc | |
| 14. |
Scratch test is performed on ___________ |
| A. | Ceramics |
| B. | Minerals |
| C. | Soft metals |
| D. | Steels |
| Answer» C. Soft metals | |
| 15. |
Which device is used to measure hardness in Mohs? |
| A. | Gyro meter |
| B. | Universal testing machine |
| C. | Rockwell tester |
| D. | Sclerometer |
| Answer» E. | |
| 16. |
Which material has the highest scratch hardness? |
| A. | Talc |
| B. | Diamond |
| C. | Limestone |
| D. | Quartz |
| Answer» C. Limestone | |
| 17. |
What is the unit of scratch hardness? |
| A. | R<sub>c</sub> |
| B. | R<sub>b</sub> |
| C. | Mohs |
| D. | BHN |
| Answer» D. BHN | |