poiht) 5 Th e amplitude ratio attains its maximum value at esonance in the case
ID: 1767068 • Letter: P
Question
poiht) 5 Th e amplitude ratio attains its maximum value at esonance in the case of viscous damping. (1 point) 6 The unbalance in a rotating machine causes vibration. (1 point) true 7. In a system with rotational unbalance, the effect of damping becomes negligibly small at higher speeds. (1 point) The response of a system under arbitrary force can be found by summing the responses due to several elementary impulses. (1 point) 8. 9. Some periodic functions cannot be replaced by a sum of harmonic functions. (1 point) 10. The response spectrum corresponding to base excitation is useful in the design of structures and machinery subjected to earthquakes. (I point)Explanation / Answer
5. True (as per characteristics curve of amplitude ratio vs frequency ratio)
6. True (Unbalance leads to generation of centrifugal force because of eccentricity)
7. True (as per amplitude frequency response curve)
8. True (similar to beats phenomenon)
10. True
9. True (Obvious reason)
10.
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