Earthquake Engineering (3160621) MCQs
MCQs of Fundamentals of Earthquake Vibrations of buildings
| 21. |
The ratio of the actual damping coefficient (c) to the critical damping coefficient (cc) is known as _________
|
||||||||
|
Answer:
Option (a) |
| 22. |
Calculate critical damping coefficient in N·s/m from the following data. mass = 200 Kg ω = 20 rad/s
|
||||||||
|
Answer:
Option (a) |
| 23. |
Calculate critical damping coefficient in N/m/s from the following data: mass = 100 Kg ω = 10 rad/s
|
||||||||
|
Answer:
Option (a) |
| 24. |
Magnification factor is the ratio of the maximum displacement due to forced vibrations to the deflection due to _________
|
||||||||
|
Answer:
Option (a) |
| 25. |
In which of the cases the factor c = 0?
|
||||||||
|
Answer:
Option (b) |
| 26. |
A body of mass 20 kg is suspended from a spring which deflects 20mm under this load. Calculate the frequency of free vibrations in Hz.
|
||||||||
|
Answer:
Option (a) |
| 27. |
In which of the following cases, overdamping occurs?
|
||||||||
|
Answer:
Option (a) |
| 28. |
In which of the following cases, underdamping occurs?
|
||||||||
|
Answer:
Option (b) |
| 29. |
The load whose magnitude, direction and position vary with respect to time known as
|
||||||||
|
Answer:
Option (b) |
| 30. |
Structural response of dynamic loading is expressed in terms of _________
|
||||||||
|
Answer:
Option (d) |
