QUESTION 1In a private office, the fire alarm sound level should be a minimum ofdB, anddB above ambient.In a residential bedroom, the fire alarm sound level should be a minimum ofdB.QUESTION 2A 25 m x 25 m room has four wall mounted strobe lights. What is the light output intensity of each strobe?QUESTION 3An advantage of a speaker over a bell is that the speaker output sound level is adjustable.O TrueO FalseQUESTION 4For visual devices installed in a corridor, the maximum distance from the device to the end wall isand the maximum distance between devices isQUESTION 5DC voltage driven devices such as bells and horns have ainside. The purpose of this, is tosupervisory current.

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Answered: QUESTION 1 In a private office, the…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter24: Wave Optics

Section: Chapter Questions

Problem 42P

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QUESTION 1 In a private office, the fire alarm sound level should be a minimum of dB, and dB above ambient. In a residential bedroom, the fire alarm sound level should be a minimum of dB.