MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
In a shaping operation, the average cutting speed is ( Stroke length S, Number of strokes per minute N, Quick return ratio R) |
| A. | NSR |
| B. | NSR/2 |
| C. | NS(1 + R) |
| D. | NS(1 + R)/2 |
| Answer» E. | |
| 2. |
Inversion of a kinematic chain relative to some other links is a property of the chain and is not that of the mechanism. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
In Oldham’s coupling the condition for maximum speed ratio is |
| A. | w1cosα/W |
| B. | w1sinα/W |
| C. | w1/W = 1/cosα |
| D. | w1/W = 1/sinα |
| Answer» D. w1/W = 1/sinα | |
| 4. |
Oldham’s coupling is used to transmit power between two parallel shafts which are slightly offset. |
| A. | True |
| B. | false |
| Answer» B. false | |
| 5. |
Which of the following are inversions of a double slider crank chain?1. Whitworth return motion 2. Scotch Yoke3. Oldham’s Coupling 4. Rotary engineSelect correct answer using the codes given below:Codes: |
| A. | 1 and 2 |
| B. | 1, 3 and 4 |
| C. | 2 and 3 |
| D. | 2, 3 and 4 |
| Answer» D. 2, 3 and 4 | |
| 6. |
INA_KINEMATIC_INVERSION,_THE_RELATIVE_MOTIONS_BETWEEN_LINKS_OF_THE_MECHANISM_CHANGE_AS_DIFFERENT_LINKS_ARE_MADE_THE_FRAME_BY_TURNS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
IN_A_SHAPING_OPERATION,_THE_AVERAGE_CUTTING_SPEED_IS_(_STROKE_LENGTH_S,_NUMBER_OF_STROKES_PER_MINUTE_N,_QUICK_RETURN_RATIO_R)?$ |
| A. | NSR |
| B. | NSR/2 |
| C. | NS(1 + R) |
| D. | NS(1 + R)/2 |
| Answer» E. | |
| 8. |
An elliptical trammel is a mechanism with three prismatic pairs and one revolute pair.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Inversion of a kinematic chain relative to some other links is a property of the chain and is not that of the mechanism? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
For one degree of freedom planer mechanism having links, which one of the following is the possible combination? |
| A. | Four binary links and two ternary links |
| B. | Four ternary links and two binary links |
| C. | Three ternary links and three binary links |
| D. | One ternary link and five binary links |
| Answer» E. | |
| 11. |
What is the number of instantaneous centres of rotation for a 6-link mechanism? |
| A. | 4 |
| B. | 6 |
| C. | 12 |
| D. | 15 |
| Answer» E. | |
| 12. |
The relative acceleration of two points which are at variable distance apart on a moving link can be determined by using the |
| A. | three centers in line theorem |
| B. | instantaneous centre of rotation method |
| C. | Coriolis component of acceleration method |
| D. | Klein’s construction |
| Answer» C. Coriolis component of acceleration method | |
| 13. |
In Oldham’s coupling the condition for maximum speed ratio is$ |
| A. | w<sub>1</sub>cosα/W |
| B. | w<sub>1</sub>sinα/W |
| C. | w<sub>1</sub>/W = 1/cosα |
| D. | w<sub>1</sub>/W = 1/sinα |
| Answer» D. w<sub>1</sub>/W = 1/sin‚âà√≠¬¨¬± | |
| 14. |
Oldham’s coupling is used to transmit power between two parallel shafts which are slightly offset.$ |
| A. | True |
| B. | false |
| Answer» B. false | |
| 15. |
Scotch yoke mechanism is used to generate |
| A. | Sine functions |
| B. | Square roots |
| C. | logarithms |
| D. | inversions |
| Answer» B. Square roots | |