Insulation of __________ over a base concrete floor is obtained by using resilient surface material on floors.(a) 1-5 dB(b) 5-10 dB(c) 12-15 dB(d) 17-25 dBThis question was posed to me in a national level competition.I would like to ask this question from Acoustics in section Acoustics and Ventilation of Construction & Building Materials

Insulation of __________ over a base concrete floor is obtained by usi

1.	Insulation of __________ over a base concrete floor is obtained by using resilient surface material on floors.(a) 1-5 dB(b) 5-10 dB(c) 12-15 dB(d) 17-25 dBThis question was posed to me in a national level competition.I would like to ask this question from Acoustics in section Acoustics and Ventilation of Construction & Building Materials
Answer» Right option is (b) 5-10 dB Explanation: An insulation of 5-10 dB over a BASE CONCRETE FLOOR is obtained by using RESILIENT SURFACE material on floors. It consists of providing soft floor finish over a thin concrete screed provided as the R.C.C. slab.

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