During day time sound level in silent zone is about
Options
(a) 20 dB
(b) 30 dB
(c) 40 dB
(d) 50 dB
Correct Answer:
50 dB
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
During day time sound level in silent zone is about
(a) 20 dB
(b) 30 dB
(c) 40 dB
(d) 50 dB
50 dB
No explanation available. Be the first to write the explanation for this question by commenting below.