1) Speech level for normal conversation with little background noise would be at what level?a) 65 dBb) 75 dBc) 85dBd) Below 50DB2) Navigation aids and other spatial maps are mostly used for what population of people???3) Therbligs are 18 kinds of elemental motions that make up a set of fundamental motions required for aworker to perform a manual operation or task. Who developed these motions?a) Human Factorsb) Robotsc) Frank Gilbrethd) U.S. Military4) Frequency differences are indicated by the ability of people to tell a slight difference betweenpure tones of different frequencies. What is this concept called?

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Answered: 1) Speech level for normal conversation…

1) Speech level for normal conversation with little background noise would be at what level? a) 65 dB b) 75 dB c) 85dB d) Below 50dB

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter29: Service-entrance Calculations

Section: Chapter Questions

Problem 3R: a. What is the ampere rating of the circuits that are provided for the small-appliance loads? _____...

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Concept explainers

Fiber Optics

Fiber optics is a technology used to transmit the facts such as light or pulses with fiber or plastic over long distances. Visual fibers are about the width of a human hair strand and, when tied directly to a fiber-optic cable, can transmit multiple long-distance records and faster in different ways.

Question

1) Speech level for normal conversation with little background noise would be at what level?
a) 65 dB
b) 75 dB
c) 85dB
d) Below 50DB
2) Navigation aids and other spatial maps are mostly used for what population of people???
3) Therbligs are 18 kinds of elemental motions that make up a set of fundamental motions required for a
worker to perform a manual operation or task. Who developed these motions?
a) Human Factors
b) Robots
c) Frank Gilbreth
d) U.S. Military
4) Frequency differences are indicated by the ability of people to tell a slight difference between
pure tones of different frequencies. What is this concept called?

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