McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
Chapters
| 1. |
Density of water in kg m-3 is {{}} |
| A. | 1000 |
| B. | 100 |
| C. | 10 000 |
| D. | 4000 |
| Answer» A. 1000 | |
| 2. |
Normal force acting per unit cross sectional area is called |
| A. | weight |
| B. | pressure |
| C. | volume |
| D. | friction |
| Answer» B. pressure | |
| 3. |
Ratio of tensile to strain is |
| A. | Young's modulus |
| B. | stress |
| C. | stiffness |
| D. | tensile force |
| Answer» A. Young's modulus | |
| 4. |
Gradient of force-extension graph is |
| A. | variable |
| B. | increasing |
| C. | decreasing |
| D. | force constant |
| Answer» D. force constant | |
| 5. |
Energy in deformed solid is called |
| A. | stress energy |
| B. | potential energy |
| C. | kinetic energy |
| D. | strain energy |
| Answer» D. strain energy | |
| 6. |
Units of stress are |
| A. | Newton |
| B. | Joules |
| C. | Pascal |
| D. | Watt |
| Answer» C. Pascal | |
| 7. |
Concentration of matter in a material is |
| A. | volume |
| B. | mass |
| C. | density |
| D. | weight |
| Answer» C. density | |
| 8. |
Units of strain are |
| A. | Newton |
| B. | Joules |
| C. | Watt |
| D. | no units |
| Answer» D. no units | |
| 9. |
Stress is force applied on |
| A. | volume |
| B. | cross sectional area |
| C. | unit length |
| D. | across diagonal |
| Answer» B. cross sectional area | |
| 10. |
The larger the spring constant, the spring would be more |
| A. | extensible |
| B. | stiffer |
| C. | compressive |
| D. | brittle |
| Answer» B. stiffer | |
| 11. |
Height of atmosphere, if atmospheric density is 1.29 kg m-3 and atmospheric pressure is 101 kPa, is {{}} |
| A. | 7839.4 m |
| B. | 7829.4 m |
| C. | 7849.4 m |
| D. | 7859.4 m |
| Answer» B. 7829.4 m | |
| 12. |
Pressure in fluid depends upon |
| A. | depth below the surface |
| B. | density of fluid |
| C. | the value of g |
| D. | all of above |
| Answer» D. all of above | |
| 13. |
As depth increases, pressure in a fluid |
| A. | increases |
| B. | decreases |
| C. | remains constant |
| D. | varies |
| Answer» A. increases | |
| 14. |
If extension in spring is proportional to load applied, then material obeys |
| A. | Newton's law |
| B. | gravitational law |
| C. | Charles's law |
| D. | Hooke's law |
| Answer» D. Hooke's law | |
| 15. |
If a spring is squashed, then forces are |
| A. | extensible |
| B. | compressive |
| C. | normal |
| D. | abnormal |
| Answer» B. compressive | |
| 16. |
Fractional increase in original length is called |
| A. | stress |
| B. | strain |
| C. | tensile force |
| D. | compression |
| Answer» B. strain | |
| 17. |
If a force of 50 N is applied across the cross-sectional area of 5 × 10 - 7m2 then stress applied on it is {{}} |
| A. | 1 × 10 8 Pa |
| B. | 20 Pa |
| C. | 50 Pa |
| D. | 100 Pa |
| Answer» A. 1 × 10 8 Pa | |
| 18. |
Mass of steel sphere having density 7850 kg m-3 and radius 0.15 m is |
| A. | 112 kg |
| B. | 290 kg |
| C. | 110.9 kg |
| D. | 300 kg |
| Answer» C. 110.9 kg | |
| 19. |
In a force-extension graph, force is taken along horizontal axis because |
| A. | force is independent variable |
| B. | extension is independent variable |
| C. | force is dependent variable |
| D. | all of above |
| Answer» A. force is independent variable | |
| 20. |
Extension and applied force are |
| A. | directly proportional |
| B. | inversely proportional |
| C. | are independent of each other |
| D. | inversely related |
| Answer» A. directly proportional | |
| 21. |
1 Pa is equal to |
| A. | 1N m |
| B. | 1 kg |
| C. | 1 N m-1 |
| D. | 1 N m-2 |
| Answer» D. 1 N m-2 | |
| 22. |
Spring constant of spring is also called |
| A. | gradient |
| B. | tensile forces |
| C. | stiffness |
| D. | compression |
| Answer» C. stiffness | |
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