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. |
For higher intermolecular bond strength, value of elastic modulus is higher. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
By altering composition or heat treatment, elastic modulus can be increased to very high orders. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Elastic modulus can’t be changed by ______ |
| A. | alloying |
| B. | cold working |
| C. | heat treatment |
| D. | by increasing section thickness |
| Answer» D. by increasing section thickness | |
| 4. |
What is the reason for elastic deformation? |
| A. | Dislocations intersection |
| B. | Twinning |
| C. | Slip |
| D. | Displacement of atoms to a fraction interatomic distance |
| Answer» E. | |
| 5. |
The restoring force depends on _____ |
| A. | Interatomic bond strength |
| B. | Melting point |
| C. | Crystallization |
| D. | Thermal conductivity |
| Answer» B. Melting point | |
| 6. |
WHAT_IS_THE_REASON_FOR_ELASTIC_DEFORMATION??$ |
| A. | Dislocations intersection |
| B. | Twinning |
| C. | Slip |
| D. | Displacement of atoms to a fraction interatomic distance |
| Answer» E. | |
| 7. |
By altering composition or heat treatment, elastic modulus can be increased to very high orders.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Elastic_modulus_can’t_be_changed_by_______$# |
| A. | alloying |
| B. | cold working |
| C. | heat treatment |
| D. | by increasing section thickness |
| Answer» D. by increasing section thickness | |
| 9. |
For_higher_intermolecular_bond_strength,_value_of_elastic_modulus_is_higher. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
The restoring force depends on ____? |
| A. | Interatomic bond strength |
| B. | Melting point |
| C. | Crystallization |
| D. | Thermal conductivity |
| Answer» B. Melting point | |
| 11. |
What is the value of elastic modulus of graphite in the direction parallel to sheets? |
| A. | 8 GPa |
| B. | 400 GPa |
| C. | 580 GPa |
| D. | 950 GPa |
| Answer» E. | |
| 12. |
_____ is an anisotropic property of a crystal. |
| A. | Elastic modulus |
| B. | Density |
| C. | Poisson’s ratio |
| D. | Damping |
| Answer» B. Density | |
| 13. |
Compressibility is reciprocal of _____ |
| A. | Shear modulus |
| B. | Elastic modulus |
| C. | Bulk modulus |
| D. | Poisson’s ratio |
| Answer» D. Poisson‚Äö√Ñ√∂‚àö√ë‚àö¬•s ratio | |
| 14. |
What is the expression for bulk modulus? |
| A. | E/2(1 + v) |
| B. | E/3(1 – 2v) |
| C. | E/ (1 – 2v) |
| D. | E/3(1 + v) |
| Answer» C. E/ (1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2v) | |
| 15. |
What is the relation between shear modulus (G) and elastic modulus (E)? |
| A. | G = E |
| B. | G = 0.35 E |
| C. | G = 0.50 E |
| D. | G = 0.75 E |
| Answer» C. G = 0.50 E | |
| 16. |
The negative ratio between the lateral strain and the direct tensile strain is known as ______ |
| A. | True strain |
| B. | Engineering strain |
| C. | Poisson’s ratio |
| D. | Elastic modulus |
| Answer» D. Elastic modulus | |
| 17. |
If the material recovers the original dimensions, when an external load is removed, this deformation is known as ______ deformation. |
| A. | plastic |
| B. | permanent |
| C. | elastic |
| D. | irreversible |
| Answer» D. irreversible | |