Dynamics of Machinery (3151911) MCQs
MCQs of Free vibrations and damped free vibrations
| 31. |
The time period of a simple pendulum does not depend upon the mass of the body suspended at the free end of the string. This statement is known as ___________ .
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Answer:
Option (b) |
| 32. |
When the shaft is straight and bent alternately and bending stresses are induced in the shaft. The type of vibration induced is ___________ .
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Answer:
Option (b) |
| 33. |
When the particles of the shaft or disc move approximately perpendicular to the axis of the shaft, then the vibrations are known as ___________ .
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Answer:
Option (b) |
| 34. |
When a body is subjected to longitudinal vibrations, the stress induced in a body will be
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Answer:
Option (d) |
| 35. |
When a body is subjected to torsional vibrations, the stress induced in a body will be
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Answer:
Option (a) |
| 36. |
For the same dimensions of the shaft which of the following has the greater natural frequency?
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Answer:
Option (b) |
| 37. |
For the same dimensions of a beam, transverse vibrations have a ______ frequency than longitudinal frequency.
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Answer:
Option (b) |
| 38. |
The resistance to the motion of the body is provided by ______.
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Answer:
Option (a) |
| 39. |
Which of the following method is not used to determine the frequency for free vibration?
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Answer:
Option (d) |
| 40. |
Find the natural frequency in Hz of the free longitudinal vibrations if the displacement is 2 mm.
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Answer:
Option (b) |
