MCQOPTIONS
Saved Bookmarks
| 1. |
Two sources generate noise levels of 90 dB and 94 dB respectively. The cumulative effect of these two noise levels on the human ear is |
| A. | 184 dB |
| B. | 95.5 dB |
| C. | 94 dB |
| D. | 92 dB |
| Answer» C. 94 dB | |