1. 
When there is a reduction in amplitude over every cycle of vibration, then the body is said to have


Answer:
Option (c) 
2. 
When there is a constant amplitude over every cycle of vibration, then the body is said to have


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


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


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.


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.


Answer:
Option (a) 
7. 
Which of the following relations is true when springs are connected parallelly? where K = spring stiffness


Answer:
Option (a) 
8. 
Which of the following relations is true when springs are connected parallelly? where K = spring stiffness


Answer:
Option (b) 
9. 
What are deterministic vibrations?


Answer:
Option (a) 
10. 
In which type of vibrations, amplitude of vibration goes on decreasing every cycle?


Answer:
Option (a) 