Q Viscous damping system: amplitude after 6 cycles is 0.125 of initial. Ratio after 4 cycles?


A. 0.125
B. 0.25
C. 0.50
D. 0.75

Correct Answer: C

Explanation:
Decay ratio ~ geometric. From 6 cycles 0.125, at 4 cycles it`s 0.25 (option B). Correction: correct answer = 0.25.

Mechanical Vibrations J.E Civil (SD) 2025 Report Error

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