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The Basics (1

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Exam of 2 pages for the course MIE 305 NCSU Chapters 1-4 at MIE 305 NCSU Chapters 1-4 (The Basics (1)

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The Basics
Social and psychological consequences of hearing loss - ANS-Social withdraws,
frustration, anger, difficulties with personal relationships

STS - ANS-Significant Threshold Shift

CAOHC - ANS-Council for Accreditation in Occupational Hearing Conservation

PTS - ANS-Permanent Threshold Shift

TTS - ANS-Temporary Threshold Shift

How many workers are exposed to hazardous noise at work - ANS-22 million

Manufacturing accounts for what % of NIHL - ANS-80%

NIHL - ANS-noise-induced hearing loss

What job has highest prevalence of noise exposures - ANS-mining

Occupational noise sources examples - ANS-industrial machinery, construction
equipment, explosives, farm equipment, musical instruments

non-occupational noise sources - ANS-motorcycles, firearms, carpentry equipment,
lawn tools, personal listening devices

Non-auditory effects of noise - ANS-negative effects on job performance, stress leading
to hypertension and ulcers

NIHL disability economic impact - ANS-$240 million per year

Sound has 3 main characteristics - ANS-Frequency(related to pitch), time refers to the
duration of the sound energy, intensity/amplitude(related to loudness)

NIOSH - ANS-National Institute for Occupational Safety and Health

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