The sound level rating used to define fan noise is expressed in ____.
A) sones
B) decibels
C) tenor
D) range

Question

Quizplus · Accepted Answer

The sound level rating used to define fan noise is expressed in sones. Decibels are a measure of sound intensity or pressure, but sones take into account the frequency response of the human ear, making it a more accurate measure for assessing noise perception. Tenor is a type of male singing vocal range, and range is a generic term that could refer to a variety of things, but is not specific enough to be the correct answer.

The Sound Level Rating Used to Define Fan Noise Is