Title Noise and Vibration Hazards
Group members: Mian Salman Zafar(C# 25) Asif Khan(C# 26) Muhammad Ayyaz(C# 27) Haroon Khan(C# 28)
Introduction
Sound is any change in pressure that can be detected by the ear.
Noise is defined as unwanted sound.
Vibration is to and fro motion of a body, non audible and is perceived through the sense of touch.
Types of noiseIndustrial noise is classified as:I. Narrow band noiseII. Wide band noiseIII. Impulse noise
Hazards of noise
Hearing loss Distraction of workers Quickened pulse Increase blood pressure Constriction of blood vessels
Noise control strategies
Engineering controls:(Reduce the sound level)
Maintenance Substitution of machines Reduction of sound transmission
through solids Reduction of driving force of vibrating
surfacesAdministrative control:(Reduction
of exposure of employees to noise)
Vibration hazards Motion sickness Spinal injuries HAV
Prevention Use of low vibration tools Limit employee exposure Employee work habits