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Unformatted text preview: assembly, very difficult inspection H 500-750-1000 Performance of very prolonged and exacting visual tasks: extra fine assembly, the inspection I 1000-1500-2000 Performance of very small visual tasks of extremely low contrast and small size: s procedures Noise Source Loudness (decibels, db) Residential inside, quiet 42 Household ventilating fan 56 Automobile, 50 feet away 68 Quiet factory area 76 18-in lathe 89 Punch press (3 feet away) 103 Nail-making machine (8 feet away) 111 Pneumatic riviter (4 feet away) 128...
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This note was uploaded on 01/06/2012 for the course IME 320 taught by Professor Mcfarland during the Winter '10 term at Cal Poly.
- Winter '10