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Stress and Strain Multiple Questions and Answers.
| 6. | Which of the following have well defined geometrical external shapes? | ||
| A. | Amorphous solids | ||
| B. | Liquids | ||
| C. | Gases | ||
| D. | Crystalline solids | ||
| 7. | A body of weight mg is hanging on a string that extends in length by l. The work done in extending the string is? | ||
| A. | mgl | ||
| B. | mgl/2 | ||
| C. | mgl/2 | ||
| D. | 0 | ||
| 8. | At what speed will the velocity head of stream of water be 40 cm? | ||
| A. | 2.80cms-1 | ||
| B. | 280 cms-1 | ||
| C. | 28 cms-1 | ||
| D. | 0.280 cms-1 | ||
| 9. | If there were no gravity, which of the following will not be there for a fluid? | ||
| A. | Viscosity | ||
| B. | Surface tension | ||
| C. | Pressure | ||
| D. | Archimedes’ upward thrust | ||
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