MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is |
| A. | v |
| B. | 2 v |
| C. | 4 v |
| D. | 8 v |
| Answer» C. 4 v | |
| 2. |
Which of the following statement is correct ? |
| A. | The kinetic energy of a body during impact remains constant. |
| B. | The kinetic energy of a body before impact is equal to the kinetic energy of a body after impact. |
| C. | The kinetic energy of a body before impact is less than the kinetic energy of a body after impact. |
| D. | The kinetic energy of a body before impact is more than the kinetic energy of a body after impact. |
| Answer» E. | |
| 3. |
A_BODY_OF_MASS_M_MOVING_WITH_A_CONSTANT_VELOCITY_V_STRIKES_ANOTHER_BODY_OF_SAME_MASS_M_MOVING_WITH_SAME_VELOCITY_BUT_IN_OPPOSITE_DIRECTION._THE_COMMON_VELOCITY_OF_BOTH_THE_BODIES_AFTER_COLLISION_IS?$ |
| A. | v |
| B. | 2 v |
| C. | 4 v |
| D. | 8 v |
| Answer» C. 4 v | |
| 4. |
The coefficient of restitution for inelastic bodies is |
| A. | zero |
| B. | between zero and one |
| C. | one |
| D. | more than one |
| Answer» B. between zero and one | |
| 5. |
The bodies which rebound after impact are called |
| A. | inelastic bodies |
| B. | elastic bodies |
| C. | solid bodies |
| D. | none of the mentioned |
| Answer» C. solid bodies | |
| 6. |
The wheels of a moving car possess |
| A. | potential energy only |
| B. | kinetic energy of translation only |
| C. | kinetic energy of rotation only |
| D. | kinetic energy of translation and rotation both. |
| Answer» E. | |
| 7. |
When a body of mass moment of inertia I (about a given axis) is rotated about that axis with an angular velocity, then the kinetic energy of rotation is |
| A. | 0.5 I.ω |
| B. | I.ω |
| C. | 0.5 I.ω<sup>2</sup> |
| D. | I.ω<sup>2</sup> |
| Answer» D. I.‚âà√¨‚àö¬¢<sup>2</sup> | |
| 8. |
The energy possessed by a body, for doing work by virtue of its position, is called |
| A. | potential energy |
| B. | kinetic energy |
| C. | electrical energy |
| D. | chemical energy |
| Answer» B. kinetic energy | |
| 9. |
Joule is a unit of |
| A. | force |
| B. | work |
| C. | power |
| D. | none of the mentioned |
| Answer» C. power | |
| 10. |
The unit of mass moment of inertia in S.I. units is |
| A. | m<sup>4</sup> |
| B. | kgf-m-s<sup>2</sup> |
| C. | kg-m<sup>2</sup> |
| D. | N-m |
| Answer» D. N-m | |
| 11. |
The force which acts along the radius of a circle and directed ____________ the centre of the circle is known as centripetal force. |
| A. | away from |
| B. | towards |
| C. | at the |
| D. | none of the mentioned |
| Answer» C. at the | |