MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
What will be the modulus of rigidity if the value of modulus of elasticity is 200 and Poissons ratio is 0.25? |
| A. | 70 |
| B. | 80 |
| C. | 125 |
| D. | 250 |
| Answer» C. 125 | |
| 2. |
What will be the approximate value of shear modulus of a material if the modulus of elasticity is 189.8 GN/m2 and its Poissons ratio is 0.30? |
| A. | 73 GN/m2 |
| B. | 80 GN/m2 |
| C. | 93.3 GN/m2 |
| D. | 103.9 GN/m2 |
| Answer» B. 80 GN/m2 | |
| 3. |
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. | |
| 4. |
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 | |
| 5. |
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. | |
| 6. |
A bar of diameter 30mm is subjected to a tensile load such that the measured extension on a gauge length of 200mm is 0.09mm and the change in diameter is 0.0045mm. Calculate the Poissons ratio? |
| A. | 1/3 |
| B. | 1/4 |
| C. | 1/5 |
| D. | 1/6 |
| Answer» B. 1/4 | |
| 7. |
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. | L2/2E |
| C. | E/2L |
| D. | E/2L2 |
| Answer» C. E/2L | |
| 8. |
A rigid beam ABCD is hinged at D and supported by two springs at A and B as shown in the given figure. The beam carries a vertical load P and C. the stiffness of spring at A is 2K and that of B is K.What will be the ratio of forces of spring at A and that of spring at B? |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» C. 2 | |