MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A body of mass 2kg is placed on a rough horizontal plane. The coefficient of friction between body and the plane is 0.2. Then ___________ |
| A. | Body will move in forward direction if F=3N |
| B. | Body will move in backward direction with acceleration of 0.5m/s2, if force F=3N |
| C. | If F=3N, then body will be in rest condition |
| D. | The body will move both in forward during a particular period and then remain at rest |
| Answer» E. | |
| 2. |
How much water a pump of 2kW can raise in one minute to a height of 10m? (g=10m/s2) |
| A. | 1000litres |
| B. | 1200litres |
| C. | 10litres |
| D. | 2000litres |
| Answer» C. 10litres | |
| 3. |
A ball of mass 2kg and another of mass 4kg are dropped together from a 60feet tall building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ration of ___________ |
| A. | √2:1 |
| B. | 1:4 |
| C. | 1:2 |
| D. | 1:√2 |
| Answer» D. 1:√2 | |
| 4. |
The Sun’s attraction of both earth and moon are external forces acting on the centre of mass of the earth-moon system. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
The point where whole weight may be assumed to act is called ___________ |
| A. | Centre of mass |
| B. | Centre of weight |
| C. | Centre of gravity |
| D. | Centre of acceleration |
| Answer» D. Centre of acceleration | |
| 6. |
A hammer is resting on a plane surface. If force P is applied on the hammer along with a line not passing through its centre of mass, them the hammer _____________ |
| A. | Moves along a straight line path |
| B. | Stays still |
| C. | Is thrown away |
| D. | Rotates about its centre of mass |
| Answer» E. | |
| 7. |
HOW_MUCH_WATER_A_PUMP_OF_2KW_CAN_RAISE_IN_ONE_MINUTE_TO_A_HEIGHT_OF_10M?_(G=10M/S2)?$ |
| A. | 1000litres |
| B. | 1200litres |
| C. | 10litres |
| D. | 2000litres |
| Answer» C. 10litres | |
| 8. |
A_body_of_mass_2kg_is_placed_on_a_rough_horizontal_plane._The_coefficient_of_friction_between_body_and_the_plane_is_0.2._Then,$ |
| A. | Body will move in forward direction if F=3N |
| B. | Body will move in backward direction with acceleration of 0.5m/s<sup>2</sup>, if force F=3N |
| C. | If F=3N, then body will be in rest condition |
| D. | The body will move both in forward during a particular period and then remain at rest |
| Answer» E. | |
| 9. |
A ball of mass 2kg and another of mass 4kg are dropped together from a 60feet tall building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ration o? |
| A. | ‚àö2:1 |
| B. | 1:4 |
| C. | 1:2 |
| D. | 1:‚àö2 |
| Answer» D. 1:‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ2 | |
| 10. |
On the application of a constant torque, a wheel is turned from rest through 400 radians in 10s. Find the angular acceleration. |
| A. | 6 rad/s<sup>2</sup> |
| B. | 4 rad/s<sup>2</sup> |
| C. | 2 rad/s<sup>2</sup> |
| D. | 8 rad/s<sup>2</sup> |
| Answer» E. | |
| 11. |
Which of the following retain their relative positions even when they move under the action of an external force? |
| A. | Rotation body |
| B. | Stationary body |
| C. | Rigid body |
| D. | A body in equilibrium |
| Answer» D. A body in equilibrium | |
| 12. |
The Sun’s attraction of both earth and moon are external forces acting on the centre of mass of the earth-moon system.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
The point where whole weight may be assumed to act is called |
| A. | Centre of mass |
| B. | Centre of weight |
| C. | Centre of gravity |
| D. | Centre of acceleration |
| Answer» D. Centre of acceleration | |
| 14. |
A hammer is resting on a plane surface. If force P is applied on the hammer along with a line not passing through its centre of mass, them the hammer |
| A. | Moves along a straight line path |
| B. | Stays still |
| C. | Is thrown away |
| D. | Rotates about its centre of mass |
| Answer» E. | |
| 15. |
Internal force holds together the particles as a single object. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Internal force is responsible for the change in velocity of an object. |
| A. | True |
| B. | False |
| Answer» C. | |