Write two method of reducing noise
Answers
Answer:
The two methods of reducing noise are
• Fan speed
In axial or centrifugal flow fans, you can increase noise control simply by changing control systems or pulley sizes and resetting dampers.
• Pneumatic exhausts
Pneumatic exhaust noise can be reduced by up to 30dB by fitting silencers. For back pressure, fit a larger coupling and silencer; for clogging, you need a straight-through silencer, while multiple exhausts can be manifolded into a single, larger diameter pipe.
Hope my answer helps u ☺️
you are looking for ways in to reduce noise pollution, things can often seem very frustrating with seemingly little you can do to prevent being disturbed by others’ noise. Noise pollution can come from a wide range of sources such as your neighbours playing loud music, traffic noise, wind and rain and various other potential sources.
To help you alleviate what can otherwise be a scourge on your quality of life and ability to relax and sleep, we have put together a list of helpful and practical solutions to help you counteract the effects of noise pollution.