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Noise: Occupational: Noise Control Design 2
BA. (i) Silencers and Air Turbulence Silencers are used to reduce noise contained in an air stream by two different ... the silencer. Reactive Silencers Reactive silencers work by forcing the air to oscillate through narrow constrictions in a resonant chamber so that the sound waves coincide and cancel each other out. Reactive silencers can be ...
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