MCQOPTIONS
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MCQOPTIONS
This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Strength Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find the strain of a brass rod of length 100mm which is subjected to a tensile load of 50kN when the extension of rod is equal to 0.1mm? |
| A. | 0.01 |
| B. | 0.001 |
| C. | 0.05 |
| D. | 0.005 |
| Answer» C. 0.05 | |
| 2. |
Some structural members subjected to a long time sustained loads deform progressively with time especially at elevated temperatures. What is such a phenomenon called? |
| A. | Fatigue |
| B. | Creep |
| C. | Creep relaxation |
| D. | Fracture |
| Answer» C. Creep relaxation | |
| 3. |
A rod 200cm long is subjected to an axial pull due to which it elongates about 2mm. Calculate the amount of strain? |
| A. | 0.001 |
| B. | 0.01 |
| C. | 0.02 |
| D. | 0.002 |
| Answer» B. 0.01 | |
| 4. |
A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times the linear strain in any of the three axes when? |
| A. | X=1 |
| B. | X=2 |
| C. | X=3 |
| D. | X=4 |
| Answer» D. X=4 | |
| 5. |
The unit of force in S.I. units is ? |
| A. | Kilogram |
| B. | Newton |
| C. | Watt |
| D. | Dyne |
| Answer» C. Watt | |
| 6. |
The lateral strain is ___________ |
| A. | The ratio of axial deformation to the original length |
| B. | The ratio of deformation in area to the original area |
| C. | The strain at right angles to the direction of applied load |
| D. | The ratio of length of body to the tensile force applied on it |
| Answer» D. The ratio of length of body to the tensile force applied on it | |
| 7. |
A tensile test was conducted on a steel bar. The gauge length of the bar was 10cm and the extension was 2mm. What will be the percentage elongation? |
| A. | 0.002 |
| B. | 0.02 |
| C. | 0.2 |
| D. | 2 |
| Answer» E. | |
| 8. |
i) Strain is a fundamental behaviour of a material. ii) Strain does not have a unit. |
| A. | Both i and ii are true and ii is the correct explanation of i |
| B. | Both i and ii ate true but ii is not the correct explanation of i |
| C. | i is true but ii is false |
| D. | ii is true but i is false |
| Answer» C. i is true but ii is false | |
| 9. |
A tensile test was conducted on a mild steel bar. The diameter and the gauge length of bat was 3cm and 20cm respectively. The extension was 0.21mm. What is the value to strain? |
| A. | 0.001 |
| B. | 0.00105 |
| C. | 0.0105 |
| D. | 0.005 |
| Answer» C. 0.0105 | |
| 10. |
What is tensile strain? |
| A. | The ratio of change in length to the original length |
| B. | The ratio of original length to the change in length |
| C. | The ratio of tensile force to the change in length |
| D. | The ratio of change in length to the tensile force applied |
| Answer» B. The ratio of original length to the change in length | |
| 11. |
THE_UNIT_OF_FORCE_IN_S.I._UNITS_IS_??$ |
| A. | Kilogram |
| B. | Newton |
| C. | Watt |
| D. | Dyne |
| Answer» C. Watt | |
| 12. |
A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times the linear strain in any of the three axes when ?$ |
| A. | X=1 |
| B. | X=2 |
| C. | X=3 |
| D. | X=4 |
| Answer» D. X=4 | |
| 13. |
Which_of_the_following_is_not_the_unit_of_distance?$ |
| A. | Angstrom |
| B. | Light year |
| C. | Micron |
| D. | Milestone |
| Answer» E. | |
| 14. |
Some structural members subjected to long time sustained loads deform progressively with time especially at elevated temperatures. What is such a phenomenon called? |
| A. | Fatigue |
| B. | Creep |
| C. | Creep relaxation |
| D. | Fracture |
| Answer» C. Creep relaxation | |
| 15. |
A_rod_200cm_long_is_subjected_to_an_axial_pull_due_to_which_it_elongates_about_2mm._Calculate_the_amount_of_strain? |
| A. | 0.001 |
| B. | 0.01 |
| C. | 0.02 |
| D. | 0.002 |
| Answer» B. 0.01 | |
| 16. |
The lateral strain is ? |
| A. | The ratio of axial deformation to the original length |
| B. | The ratio of deformation in area to the original area |
| C. | The strain at right angles to the direction of applied load |
| D. | The ratio of length of body to the tensile force applied on it |
| Answer» D. The ratio of length of body to the tensile force applied on it | |
| 17. |
A tensile test was conducted on a steel bar. The gauge length of the bar was 10cm and the extension was 2mm. What will be the percentage elongation ? |
| A. | 0.002 |
| B. | 0.02 |
| C. | 0.2 |
| D. | 2 |
| Answer» E. | |
| 18. |
q. Strain is a fundamental behaviour of material. |
| A. | |
| B. | Both q. and r. are true and r. is the correct explanation of q |
| C. | Both q. and r. ate true but r. is not the correct explanatio of q |
| Answer» C. Both q. and r. ate true but r. is not the correct explanatio of q | |
| 19. |
A tensile test was conducted on a mild steel bar. The diameter and the gauge length of bat was 3cm and 20cm respectively. The extension was 0.21mm. What is the value to strain ? |
| A. | 0.0010 |
| B. | 0.00105 |
| C. | 0.0105 |
| D. | 0.005 |
| Answer» C. 0.0105 | |
| 20. |
Find the elongation of an steel rod of 100mm length when it is subjected to a tensile strain of 0.005? |
| A. | 0.2mm |
| B. | 0.3mm |
| C. | 0.5mm |
| D. | 0.1mm |
| Answer» D. 0.1mm | |
| 21. |
Find the strain of a brass rod of length 250mm which is subjected to a tensile load of 50kN when the extension of rod is equal to 0.3mm? |
| A. | 0.025 |
| B. | 0.0012 |
| C. | 0.0046 |
| D. | 0.0014 |
| Answer» C. 0.0046 | |
| 22. |
What is tensile stress? |
| A. | The ratio of change in length to the original length |
| B. | The ratio of original length to the change in length |
| C. | The ratio of tensile force to the change in length |
| D. | The ratio of change in length to the tensile force applied |
| Answer» B. The ratio of original length to the change in length | |
| 23. |
The dimension of strain is? |
| A. | LT<sup>-2</sup> |
| B. | N/m<sup>2</sup> |
| C. | N |
| D. | Dimensionless |
| Answer» E. | |