Page 1 of 1

1. If a motor generates a sound pressure of 4.3 Pa, calculate the sound pressure level in decibels. 2. A worker is expos

Posted: Fri May 06, 2022 10:19 am
by answerhappygod
1. If a motor generates a sound pressure of 4.3 Pa, calculate
the sound pressure level in decibels.
2. A worker is exposed to noise levels of 80 dBA for 60 minutes,
84 dBA for 120 minutes and a background level of 70 dBA for the
remainder of their 8 hour shift. Calculate their 8 hour noise
exposure.
3. Define the term ‘primary aerosol’. List three examples of a
primary aerosol.