1. When frequency ratio is < 2, the force transmitted to the foundation is more than the exciting force. |
2. When frequency ratio is > 2, the force transmitted to the foundation increases and the damping is decreased. |
3. The analysis of base excited vibrations is similar to that of forced vibrations. |
A) 1 and 2
B) 2 and 5
C) 1 and 3
D) 1, 2 and 3
Correct Answer: A
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