MCQOPTIONS
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MCQOPTIONS
This section includes 38 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What the number that measures an object’s resistance to being deformed elastically when stress is applied to it? |
| A. | Elastic modulus |
| B. | Plastic modulus |
| C. | Poisson’s ratio |
| D. | Stress modulus |
| Answer» B. Plastic modulus | |
| 2. |
What kind of elastic materials are derived from a strain energy density function? |
| A. | Cauchy elastic materials |
| B. | Hypo elastic materials |
| C. | Hyper elastic materials |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
As the elastic limit reaches, tensile strain __________ |
| A. | Increases more rapidly |
| B. | Decreases more rapidly |
| C. | Increases in proportion to the stress |
| D. | Decreases in proportion to the stress |
| Answer» B. Decreases more rapidly | |
| 4. |
A member which does not regain its original shape after removal of the load producing deformation is said __________ |
| A. | Plastic |
| B. | Elastic |
| C. | Rigid |
| D. | None of the mentioned |
| Answer» B. Elastic | |
| 5. |
The materials which have the same elastic properties in all directions are called __________ |
| A. | Isotropic |
| B. | Brittle |
| C. | Homogeneous |
| D. | Hard |
| Answer» B. Brittle | |
| 6. |
Which law is also called as the elasticity law? |
| A. | Bernoulli’s law |
| B. | Stress law |
| C. | Hooke’s law |
| D. | Poisson’s law |
| Answer» D. Poisson’s law | |
| 7. |
The property of a material by which it can be beaten or rolled into thin plates is called __________ |
| A. | Malleability |
| B. | Plasticity |
| C. | Ductility |
| D. | Elasticity |
| Answer» B. Plasticity | |
| 8. |
The property by which a body returns to its original shape after removal of the force is called __________ |
| A. | Plasticity |
| B. | Elasticity |
| C. | Ductility |
| D. | Malleability |
| Answer» C. Ductility | |
| 9. |
Air is more elastic than water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
A thick wire is suspended from a rigid support and no load is attached to its free end but the wire is under stress. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
What is the effect of annealing on elasticity of materials? |
| A. | Increases the elasticity |
| B. | Decreases the elasticity |
| C. | Has no effect on elasticity |
| D. | Distorts the material |
| Answer» C. Has no effect on elasticity | |
| 12. |
Calculate the Young’s modulus in the cantilever depression method. The length is 1m which is suspended with a load of 150gm. The depression is found to be 4cm. The thickness of the beam is 5mm and breadth is 3cm. |
| A. | 3.92 × 1010 N/m2 |
| B. | 9000 × 1010 N/m2 |
| C. | 4000 × 1010 N/m2 |
| D. | 1.245 ×1010 N/m2 |
| Answer» B. 9000 × 1010 N/m2 | |
| 13. |
What is the effect of hammering on elasticity of materials? |
| A. | Has no effect on elasticity |
| B. | Decreases the elasticity |
| C. | Increases the elasticity |
| D. | Breaks the material |
| Answer» D. Breaks the material | |
| 14. |
The modulus of rigidity and Poisson’s ratio of the wire are 2.87 × 1010 N/m2 and 0.379 respectively. What is the value of young’s modulus of the material of the wire. |
| A. | 1.08773 × 1010 N/m2 |
| B. | 7.915 × 1010 N/m2 |
| C. | 7.5725 × 1010 N/m2 |
| D. | 0.1403 × 1010 N/m2 |
| Answer» C. 7.5725 × 1010 N/m2 | |
| 15. |
A copper wire of length 3m and 1mm diameter is subjected to a tension of 5N. Calculate the elongation produced, if the young’s modulus of copper is 120GPa. |
| A. | 15m |
| B. | 1800m |
| C. | 0.125 ×10-3 m |
| D. | 15.9mm |
| Answer» E. | |
| 16. |
When too many people stand on a bridge it collapses, why? |
| A. | Due to increase in stress |
| B. | Due to overweight |
| C. | Due to improper construction |
| D. | Due to friction |
| Answer» B. Due to overweight | |
| 17. |
WHAT KIND OF ELASTIC MATERIALS ARE DERIVED FROM A STRAIN ENERGY DENSITY FUNCTION? |
| A. | Cauchy elastic materials |
| B. | Hypo elastic materials |
| C. | Hyper elastic materials |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 18. |
THE_MODULUS_OF_RIGIDITY_AND_POISSON‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_RATIO_OF_THE_WIRE_ARE_2.87_‚ÄÖ√†√∂‚Àւ•_1010_N/M2_AND_0.379_RESPECTIVELY._WHAT_IS_THE_VALUE_OF_YOUNG‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_MODULUS_OF_THE_MATERIAL_OF_THE_WIRE.?$# |
| A. | 1.08773 √ó 10<sup>10</sup> N/m<sup>2</sup> |
| B. | 7.915 √ó 10<sup>10</sup> N/m<sup>2</sup> |
| C. | 7.5725 √ó 10<sup>10</sup> N/m<sup>2</sup> |
| D. | 0.1403 √ó 10<sup>10</sup> N/m<sup>2</sup> |
| Answer» C. 7.5725 ‚Äö√†√∂‚àö‚â• 10<sup>10</sup> N/m<sup>2</sup> | |
| 19. |
Calculate the Young’s modulus in the cantilever depression method. The length is 1m which is suspended with a load of 150gm. The depression is found to be 4cm. The thickness of the beam is 5mm and breadth is 3cm.$# |
| A. | 3.92 √ó 10<sup>10</sup> N/m<sup>2</sup> |
| B. | 9000 √ó 10<sup>10</sup> N/m<sup>2</sup> |
| C. | 4000 √ó 10<sup>10</sup> N/m<sup>2</sup> |
| D. | 1.245 √ó10<sup>10</sup> N/m<sup>2</sup> |
| Answer» B. 9000 ‚Äö√†√∂‚àö‚â• 10<sup>10</sup> N/m<sup>2</sup> | |
| 20. |
What the number that measures an object’s resistance to being deformed elastically when stress is applied to it? |
| A. | Elastic modulus |
| B. | Plastic modulus |
| C. | Poisson‚ |
| D. | Stress modulus |
| Answer» B. Plastic modulus | |
| 21. |
What_is_the_effect_of_hammering_on_elasticity_of_materials? |
| A. | Has no effect on elasticity |
| B. | Decreases the elasticity |
| C. | Increases the elasticity |
| D. | Breaks the material |
| Answer» D. Breaks the material | |
| 22. |
Air is more elastic than water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 23. |
Which type of elasticity is involved in tangential push on the upper face of a block? |
| A. | Bulk modulus |
| B. | Young’s modulus |
| C. | Rigidity modulus |
| D. | Elastic limit |
| Answer» D. Elastic limit | |
| 24. |
A thick wire is suspended from a rigid support and no load is attached to its free end but the wire is under stress. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 25. |
What is the effect of annealing on elasticity of materials? |
| A. | Increases the elasticity |
| B. | Decreases the elasticity |
| C. | Has no effect on elasticity |
| D. | Distorts the material |
| Answer» C. Has no effect on elasticity | |
| 26. |
As the elastic limit reaches, tensile strai? |
| A. | Increases more rapidly |
| B. | Decreases more rapidly |
| C. | Increases in proportion to the stress |
| D. | Decreases in proportion to the stress |
| Answer» B. Decreases more rapidly | |
| 27. |
A copper wire of length 3m and 1mm diameter is subjected to a tension of 5N. Calculate the elongation produced, if the young’s modulus of copper is 120GP?# |
| A. | 15m |
| B. | 1800m |
| C. | 0.125 √ó10<sup>-3</sup> m |
| D. | 15.9mm |
| Answer» E. | |
| 28. |
What will happen to the elastic property of Gold when Potassium is added to gold? |
| A. | The elastic property of gold decreases |
| B. | The elastic property of gold remains unaltered |
| C. | The elastic property of gold increases |
| D. | Gold loses its elastic property |
| Answer» D. Gold loses its elastic property | |
| 29. |
The body will regain it is previous shape and size only when the deformation caused by the external forces, is within a certain limit. What is that limit? |
| A. | Plastic limit |
| B. | Elastic limit |
| C. | Deformation limit |
| D. | None of the mentioned |
| Answer» C. Deformation limit | |
| 30. |
A pendulum A oscillating continuously comes to rest after some time. Now make both pendulums A and B to oscillate simultaneously. What will happen? |
| A. | A comes to rest earlier than B |
| B. | B comes to rest earlier than A |
| C. | A and B comes to rest simultaneously |
| D. | A and B oscillate forever |
| Answer» B. B comes to rest earlier than A | |
| 31. |
A member which does not regain its original shape after removal of load producing deformation is said |
| A. | Plastic |
| B. | Elastic |
| C. | Rigid |
| D. | None of the mentioned |
| Answer» B. Elastic | |
| 32. |
What happens when the stress applied to the body is increased beyond the maximum value and is removed after some time? |
| A. | The body will come back to its original position |
| B. | The body will oppose the stress |
| C. | The body becomes hot |
| D. | The body cannot return to its original position |
| Answer» E. | |
| 33. |
The materials which have the same elastic properties in all directions, are called |
| A. | Isotropic |
| B. | Brittle |
| C. | Homogeneous |
| D. | Hard |
| Answer» C. Homogeneous | |
| 34. |
Fluids cannot resist sheer stress. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 35. |
Which law is also called as the elasticity law |
| A. | Bernoulli’s law |
| B. | Stress law |
| C. | Hooke’s law |
| D. | Poisson’s law |
| Answer» D. Poisson‚Äö√Ñ√∂‚àö√ë‚àö¬•s law | |
| 36. |
When a rope is pulled on either side, what is the stress acting on it? |
| A. | Compressive stress |
| B. | Tensile stress |
| C. | Normal stress |
| D. | Tangential stress |
| Answer» C. Normal stress | |
| 37. |
For a constant force, a rope breaks due to stress. Which of the following is useful to reduce the stress? |
| A. | Increase the length of the rope |
| B. | Apply small force |
| C. | Increase the cross sectional area of the rope |
| D. | Use a different material of rope |
| Answer» D. Use a different material of rope | |
| 38. |
When too many people stand on a bridge it collapses, why? |
| A. | Due to increase in stress |
| B. | Due to overweight |
| C. | Due to improper construction |
| D. | Due to friction |
| Answer» B. Due to overweight | |