Question

Two engines create sound intensity levels of 88.8 dB and 98.5 dB, respectively. What dB reading would you expect when both are run simultaneously?

A. 187.3 dB
B. 87.3 dB
C. 107.3 dB
D. 186.7 dB

Answer 1

The expected dB reading when both engines are run simultaneously is 187.3 dB.

Step-by-step explanation:

When two sound sources are combined, the combined sound level is determined by adding the individual sound intensity levels. In this case, one engine creates a sound intensity level of 88.8 dB and the other engine creates 98.5 dB. To find the combined dB reading when both engines are run simultaneously, simply add the two sound intensity levels:

Combined dB reading = 88.8 dB + 98.5 dB

Combined dB reading = 187.3 dB

Therefore, the expected dB reading when both engines are run simultaneously is 187.3 dB.