MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 relation l = 2/3(j+2) apply to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to |
| A. | one lower pair and two additional links |
| B. | two lower pairs and one additional link |
| C. | two lower pairs and two additional links |
| D. | all of the mentioned |
| Answer» C. two lower pairs and two additional links | |
| 2. |
The relation between number of links(l) and number of joints(j) in a kinematic chain is |
| A. | l = 1/2 (j+2) |
| B. | l = 2/3 (j+2) |
| C. | l = 3/4 (j+2) |
| D. | l = j+4 |
| Answer» C. l = 3/4 (j+2) | |
| 3. |
The relation between number of pairs(p) forming a kinematic chain and the number of links(l) is |
| A. | l = 2p – 2 |
| B. | l = 2p – 3 |
| C. | l = 2p – 4 |
| D. | l = 2p – 5 |
| Answer» D. l = 2p – 5 | |
| 4. |
THE_RELATION_L_=_2/3(J+2)_APPLY_TO_KINEMATIC_CHAINS_IN_WHICH_LOWER_PAIRS_ARE_USED._THIS_MAY_BE_USED_TO_KINEMATIC_CHAINS_IN_WHICH_HIGHER_PAIRS_ARE_USED,_BUT_EACH_HIGHER_PAIR_MAY_BE_TAKEN_AS_EQUIVALENT_TO?$ |
| A. | one lower pair and two additional links |
| B. | two lower pairs and one additional link |
| C. | two lower pairs and two additional links |
| D. | all of the mentioned |
| Answer» C. two lower pairs and two additional links | |
| 5. |
THE_RELATION_BETWEEN_NUMBER_OF_LINKS(L)_AND_NUMBER_OF_JOINTS(J)_IN_A_KINEMATIC_CHAIN_IS?$ |
| A. | l = 1/2 (j+2) |
| B. | l = 2/3 (j+2) |
| C. | l = 3/4 (j+2) |
| D. | l = j+4 |
| Answer» C. l = 3/4 (j+2) | |
| 6. |
The relation between number of pairs(p) forming a kinematic chain and the number of links(l) i? |
| A. | l = 2p – 2 |
| B. | l = 2p – 3 |
| C. | l = 2p – 4 |
| D. | l = 2p – 5 |
| Answer» D. l = 2p ‚Äö√Ñ√∂‚àö√ë‚àö¬® 5 | |
| 7. |
A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a |
| A. | structure |
| B. | mechanism |
| C. | kinematic chain |
| D. | inversion |
| Answer» D. inversion | |
| 8. |
The sliding pairs, turning pairs and screw pairs form lower pairs. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
In an open pair, the two elements of a pair |
| A. | have a surface contact when in motion |
| B. | have a line or point contact when in motion |
| C. | are kept in contact by the action of external forces, when in motion |
| D. | are not held mechanically |
| Answer» E. | |
| 10. |
The two elements of a pair are said to form a ___________ when they permit relative motion between them. |
| A. | open pair |
| B. | kinematic pair |
| C. | higher pair |
| D. | lower pair |
| Answer» C. higher pair | |
| 11. |
In a force-closed pair, the two elements of a pair are not held together mechanically. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
The two elements of a pair are said to form a higher pair, when they |
| A. | have a surface contact when in motion |
| B. | have a line or point contact when in motion |
| C. | are kept in contact by the action of external forces, when in motion |
| D. | permit relative motion |
| Answer» C. are kept in contact by the action of external forces, when in motion | |
| 13. |
When the two elements of a pair have _____________ when in motion, it is said to a lower pair. |
| A. | line or point contact |
| B. | surface contact |
| C. | permit relative motion |
| D. | none of the mentioned |
| Answer» C. permit relative motion | |