1. |
When there is a reduction in amplitude over every cycle of vibration, then the body is said to have
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Answer:
Option (c) |
2. |
When there is a constant amplitude over every cycle of vibration, then the body is said to have
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Answer:
Option (c) |
3. |
In under damped vibrating system, if x1 and x2 are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to
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Answer:
Option (b) |
4. |
The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as
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Answer:
Option (d) |
5. |
Two springs have spring stiffness of 1500 N/m and 2000 N/m respectively. If they are connected in series, what is the spring stiffness of an equivalent system.
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Answer:
Option (c) |
6. |
Two springs have spring stiffness of 1000 N/m and 2000 N/m respectively. If they are connected in parallel, what is the spring stiffness of an equivalent system.
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Answer:
Option (a) |
7. |
Which of the following relations is true when springs are connected parallelly? where K = spring stiffness
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Answer:
Option (a) |
8. |
Which of the following relations is true when springs are connected parallelly? where K = spring stiffness
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Answer:
Option (b) |
9. |
What are deterministic vibrations?
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Answer:
Option (a) |
10. |
In which type of vibrations, amplitude of vibration goes on decreasing every cycle?
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Answer:
Option (a) |