Range of noise generated by domestic air conditioner

Q.  The noise level generated by domestic air conditioner ranges between _________
- Published on 11 Sep 15

a. 38 dB to 70 dB
b. 35 dB to 52 dB
c. 62 dB to 88 dB
d. 50 dB to 60 dB

ANSWER: 50 dB to 60 dB

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