ETM 430 HW of Week 4: Chapters 8, 9 & 10 Pin It Chapter 9 (100 points) 1. A classroom 80’x60’ with a 11’ ceiling will be illuminated for reading and transcribing handwriting in ink or medium pencil on good-quality paper. Uniform lighting is required throughout the room. Desks in the classroom are 3’ high. All ceilings and walls are to be painted medium-color and soft 40 watt fluorescent lamps are selected for long-term eye comfort, 2-lamp-and-4’-long luminaries are used, luminaries are to be ceiling mounted, and all luminaries are to be cleaned every six months. Please determine the numbers of lamps and luminaries and develop the light layout. (50 pts) 2. Everything remains the same as that of Question 1 except that the luminaries are suspended from 25’ ceiling. Please determine the numbers of lamps and luminaries and develop the light layout. (50 pts)

 
 

ETM 430 HW of Week 4: Chapters 8, 9 & 10

Chapter 9 (100 points)

 

  1. A classroom 80’x60’ with a 11’ ceiling will be illuminated for reading and transcribing handwriting in ink or medium pencil on good-quality paper. Uniform lighting is required throughout the room. Desks in the classroom are 3’ high. All ceilings and walls are to be painted medium-color and soft 40 watt fluorescent lamps are selected for long-term eye comfort, 2-lamp-and-4’-long luminaries are used, luminaries are to be ceiling mounted, and all luminaries are to be cleaned every six months. Please determine the numbers of lamps and luminaries and develop the light layout. (50 pts)

 

 

  1. Everything remains the same as that of Question 1 except that the luminaries are suspended from 25’ ceiling. Please determine the numbers of lamps and luminaries and develop the light layout. (50 pts)
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