MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Behaviour knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Strength of the composite depends on the strength of the fibers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The ability to carry the applied load is doesn’t depend on the length of fiber. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Fibers for which l >> lc are known as ____ |
| A. | Continues |
| B. | Discontinuous |
| C. | Random |
| D. | Alligned |
| Answer» B. Discontinuous | |
| 4. |
What is the size of particulates in particular composites? |
| A. | 0.1 – 1 µm |
| B. | 1 – 50 µm |
| C. | 50 – 100 µm |
| D. | Higher than 100 µm |
| Answer» C. 50 – 100 µm | |
| 5. |
The composite of metal matrix and ceramic materials as reinforcement are known as ___ |
| A. | Dispersoids |
| B. | Cermets |
| C. | Metalloids |
| D. | Vicalloy |
| Answer» C. Metalloids | |
| 6. |
FIBERS_FOR_WHICH_L_>>_LC_ARE_KNOWN_AS_____?$ |
| A. | Continues |
| B. | Discontinuous |
| C. | Random |
| D. | Alligned |
| Answer» B. Discontinuous | |
| 7. |
WHAT_IS_THE_SIZE_OF_PARTICULATES_IN_PARTICULAR_COMPOSITES??$ |
| A. | 0.1 – 1 µm |
| B. | 1 – 50 µm |
| C. | 50 – 100 µm |
| D. | Higher than 100 µm |
| Answer» C. 50 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 100 ¬¨¬®¬¨¬µm | |
| 8. |
The ability to carry the applied load is doesn’t depend on the length of fiber.$# |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Strength_of_the_composite_depends_on_the_strength_of_the_fibers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
The composite of metal matrix and ceramic materials as reinforcement are known as __? |
| A. | Dispersoids |
| B. | Cermets |
| C. | Metalloids |
| D. | Vicalloy |
| Answer» C. Metalloids | |
| 11. |
Which composite system is used in making bulb filaments? |
| A. | Be-Beo |
| B. | Ag-CdO |
| C. | W-ThO<sub>2</sub> |
| D. | Co-ThO<sub>2</sub> |
| Answer» D. Co-ThO<sub>2</sub> | |
| 12. |
Which composite is used in electrical contact materials? |
| A. | Ag-CdO |
| B. | Pt-ThO<sub>2</sub> |
| C. | Pb-PbO |
| D. | Be-BeO |
| Answer» B. Pt-ThO<sub>2</sub> | |
| 13. |
What is the size range in dispersoids in dispersion strengthened composites? |
| A. | Less than 1 nm |
| B. | 1 – 10 nm |
| C. | 0.01 – 0.1 µm |
| D. | 0.1 – 1 µm |
| Answer» D. 0.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1 ¬¨¬®¬¨¬µm | |
| 14. |
What is the concentration of particles by volume in dispersion strengthened composites? |
| A. | Less than 1% |
| B. | 1 – 15% |
| C. | 15-20% |
| D. | 25-30% |
| Answer» C. 15-20% | |
| 15. |
What is an effect of an increase in diameter of fiber on strength? |
| A. | Increases linearly |
| B. | Decreases linearly |
| C. | Remains constant |
| D. | Increases non-linearly |
| Answer» B. Decreases linearly | |
| 16. |
Reinforcement of fibers of SiC improve flexural strength of glass ceramic to almost ____________ |
| A. | 2 times |
| B. | 3 times |
| C. | 4 times |
| D. | 6 times |
| Answer» D. 6 times | |
| 17. |
Reinforcement of SiC fibers increases fracture toughness of glass ceramic to about ____________ |
| A. | 2 times |
| B. | 3 times |
| C. | 4 times |
| D. | 5 times |
| Answer» B. 3 times | |