MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Strength of Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A bar of 40mm dia and 40cm length is subjected to an axial load of 100 kN. It elongates by 0.005mm. Calculate the Poissons ratio of the material of bar? |
| A. | 0.25 |
| B. | 0.28 |
| C. | 0.30 |
| D. | 0.33 |
| Answer» E. | |
| 2. |
An experiment was done and it was found that the bulk modulus of a material is equal to its shear modulus. Then what will be its Poissons ratio? |
| A. | 0.125 |
| B. | 0.150 |
| C. | 0.200 |
| D. | 0.375 |
| Answer» B. 0.150 | |
| 3. |
What will be the ratio of Youngs modulus to the modulus of rigidity of a material having Poissons ratio 0.25? |
| A. | 3.75 |
| B. | 3.00 |
| C. | 1.5 |
| D. | 2.5 |
| Answer» E. | |
| 4. |
A solid metal bat of uniform diameter D and length L is hung vertically from a ceiling. If the density of the material of the bar is 1 and the modulus of elasticity is E, then the total elongation of the bar due to its own weight will be ____________ |
| A. | L/2E |
| B. | L<sup>2</sup>/2E |
| C. | E/2L |
| D. | E/2L<sup>2</sup> |
| Answer» C. E/2L | |
| 5. |
What will be the elastic modulus of a material if the Poisson s ratio for that material is 0.5? |
| A. | Equal to its shear modulus |
| B. | Three times its shear modulus |
| C. | Four times its shear modulus |
| D. | Not determinable |
| Answer» C. Four times its shear modulus | |