MCQOPTIONS
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MCQOPTIONS
This section includes 8 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 point B on a rigid link AB moves with respect to A with angular velocity ωrad/s. The total acceleration of B with respect to A will be equal to |
| A. | vector sum of radial component and coriolis component |
| B. | vector sum of tangential component and coriolis component |
| C. | vector sum of radial component and tangential component |
| D. | vector difference of radial component and tangential component |
| Answer» D. vector difference of radial component and tangential component | |
| 2. |
The component of the accelertion, perpendicular to the velocity of the particle, at the given instant is called |
| A. | radial component |
| B. | tangential component |
| C. | coriolis component |
| D. | none of the mentioned |
| Answer» B. tangential component | |
| 3. |
The component of the accelertion, parallel to the velocity of the particle, at the given instant is called |
| A. | radial component |
| B. | tangential component |
| C. | coriolis component |
| D. | none of the mentioned |
| Answer» C. coriolis component | |
| 4. |
A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard? |
| A. | All points of the disc have the same velocity. |
| B. | The centre of the disc has zero acceleration. |
| C. | The centre of the disc has centrifugal acceleration. |
| D. | The point on the disc making contact with the plane surface has zero acceleration. |
| Answer» C. The centre of the disc has centrifugal acceleration. | |
| 5. |
In the above question, if both the links OA and OB turns in clockwise direction, then the rubbing velocity at the pin joint O is |
| A. | ω1.ω2.r |
| B. | (ω1-ω2)r |
| C. | (ω1+ω2)r |
| D. | (ω1-ω2)2r |
| Answer» C. (ω1+ω2)r | |
| 6. |
The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω1 rad/s in the clockwise direction and the link OB turns with angular velocity ω2 rad/s in the anti-clockwise direction, then the rubbing velocity at the pin joint O is |
| A. | ω1.ω2.r |
| B. | (ω1-ω2)r |
| C. | (ω1+ω2)r |
| D. | (ω1-ω2)2r |
| Answer» D. (ω1-ω2)2r | |
| 7. |
The direction of linear velocity of any point on a link with respect to another point on the same link is |
| A. | parallel to the link joining the points |
| B. | perpendicular to the link joining the points |
| C. | at 450 to the link joining the points |
| D. | none of the mentioned |
| Answer» C. at 450 to the link joining the points | |
| 8. |
The magnitude of linear velocity of a point B on a link AB relative to point A is |
| A. | ω x AB |
| B. | ω(AB)2 |
| C. | ω2AB |
| D. | (ω x AB)2 |
| Answer» B. ω(AB)2 | |