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Which of the following is not an acoustical defect?

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in Construction & Building Materials by (190k points)
Which of the following is not an acoustical defect?

(a) Reverberation

(b) Formation of echoes

(c) Absorption

(d) Sound foci

The question was posed to me at a job interview.

My question is from Common Acoustical Defects topic in chapter Acoustics and Ventilation of Construction & Building Materials

1 Answer

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Best answer
The correct choice is (c) Absorption

The best explanation: Some of the common acoustical defects are reverberation, the formation of echoes, exterior noise and sound foci. Absorption is the property of the sound wave by which a part of its energy is absorbed by friction when it strikes a surface.

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