methods used include enclosing the operation or the addition of acoustic shields between the worker and the noise source. An acoustic shield is most effective when its smaller dimension is at least three times the wavelength of the noise source. If these control methods fail to reduce noise to acceptable levels or are simply impractical
Cutting and grinding is performed on many jobsites. The following are a list of safety precautions that must be followed to prevent injury or property damage. Stay alert and watch what you are doing. Do not use tool while tired or under the influence of drugs, alcohol or medication.