MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
The absolute acceleration of any point P in a link about center of rotation O is |
| A. | along PO |
| B. | perpendicular to PO |
| C. | at 450 to PO |
| D. | none of the mentioned |
| Answer» E. | |
| 2. |
A link is rotating about O. Velocity of point P on link w.r.t. point Q on link will be perpendicular to |
| A. | OP |
| B. | OQ |
| C. | PQ |
| D. | line in between OP and OQ |
| Answer» D. line in between OP and OQ | |
| 3. |
According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centres lie on |
| A. | a triangle |
| B. | a point |
| C. | two lines |
| D. | a straight line |
| Answer» E. | |
| 4. |
THE_VELOCITY_OF_ANY_POINT_IN_MECHANISM_RELATIVE_TO_ANY_OTHER_POINT_ON_THE_MECHANISM_ON_VELOCITY_POLYGON_IS_REPRESENTED_BY_THE_LINE?$ |
| A. | joining the corresponding points |
| B. | perpendicular to line |
| C. | at 45<sup>0</sup> to line |
| D. | none of the mentioned |
| Answer» B. perpendicular to line | |
| 5. |
Angular acceleration of a link can be determined by dividing the$ |
| A. | centripetal component of acceleration with length of link |
| B. | tangential component of acceleration with length of link |
| C. | resultant acceleration with length of link |
| D. | all of the mentioned |
| Answer» C. resultant acceleration with length of link | |
| 6. |
The_absolute_acceleration_of_any_point_P_in_a_link_about_center_of_rotation_O_is$ |
| A. | along PO |
| B. | perpendicular to PO |
| C. | at 45<sup>0</sup> to PO |
| D. | none of the mentioned |
| Answer» E. | |
| 7. |
A link is rotating about O. Velocity of point P on link w.r.t. point Q on link will be perpendicular t? |
| A. | OP |
| B. | OQ |
| C. | PQ |
| D. | line in between OP and OQ |
| Answer» D. line in between OP and OQ | |
| 8. |
Two systems shall be dynamically equivalent when |
| A. | the mass of two are same |
| B. | c.g. of two coincides |
| C. | M.I. of two about an axis through c.g. is equal |
| D. | all of the mentioned |
| Answer» E. | |
| 9. |
In a rigid link OA, velocity of A w.r.t. O will be |
| A. | parallel to OA |
| B. | perpendicular to OA |
| C. | at 45<sup>0</sup> to OA |
| D. | along AO |
| Answer» C. at 45<sup>0</sup> to OA | |
| 10. |
According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centres lie on$ |
| A. | a triangle |
| B. | a point |
| C. | two lines |
| D. | a straight line |
| Answer» E. | |
| 11. |
The number of links and instantaneous centers in a reciprocating engine mechanism are |
| A. | 4,4 |
| B. | 4,5 |
| C. | 5,4 |
| D. | 4,6 |
| Answer» E. | |
| 12. |
The total number of instantaneous centers for a mechanism of n links is |
| A. | n(n – 1)/2 |
| B. | n |
| C. | n – 1 |
| D. | n(n – 1) |
| Answer» B. n | |
| 13. |
Instantaneous center of rotation of a link in a four bar mechanism lies on |
| A. | right side pivot of this link |
| B. | left side pivot of this link |
| C. | a point obtained by intersection on extending adjoining links |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 14. |
Which is the false statement about the properties of instantaneous centre? |
| A. | at the instantaneous centre of rotation, one rigid link rotates instantaneously relative to another for the configuration of mechanism considered |
| B. | the two rigid links have no linear velocities relative to each other at the instantaneous centre |
| C. | the two rigid links which have no linear velocity relative to each other at this centre have the same linear velocity to the third rigid link |
| D. | the double centre can be denoted either by O<sub>21</sub> or O<sub>12</sub>, but proper selection should be made |
| Answer» E. | |