We want to illuminate a classroom with the following dimensions: 50'x45'x12' How many fixtures should be installed to yield 45 fc at the desktop at 48" above the floor? The fixture selected uses three F48 CW/HO (60 watt) rated 4300 lumens each. Reflectance: pc=70%, pw 50%, pf-20% Ceiling Cavity Ratio; CCR = 0 Light Loss factor: Average Choose 75% What is the CU? 68.75 55.00 54.25 63.55

We want to illuminate a classroom with the following dimensions: 50'x45'x12' How many fixtures should be installed to yield 45 fc at the desktop at 48" above the floor? The fixture selected uses three F48 CW/HO (60 watt) rated 4300 lumens each. Reflectance: pc=70%, pw 50%, pf-20% Ceiling Cavity Ratio; CCR = 0 Light Loss factor: Average Choose 75% What is the CU? 68.75 55.00 54.25 63.55

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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