B.P.S.C. CDPO (Pre) 2018
A noise level of 100 decibels would correspond to
ajust audible sound
bordinary conversation
csound from a noisy street
dnoise from a machine shop✓ Correct
eNone of the above/More than one of the above
Explanation
A sound level of 100 decibels corresponds to the noise intensity level of a machine shop. The intensity level of sound is measured in decibels (dB). The World Health Organization (WHO) has fixed the outdoor living-area noise level during daytime at 50–55 dB, while inside bedrooms at night the noise level is 30 dB. (362) General Studies ## Page 11
general-science