noise and vibration hazards

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