A 40 watts x 120 cm long fluorescent lamp produces 3200 lumens of light in a dining room of 10 ft x 20 ft. Compute the illumination on the floor comparing the English and Metric units.
A 40 watts x 120 cm long fluorescent lamp produces 3200 lumens of light in a dining room of 10 ft x 20 ft. Compute the illumination on the floor comparing the English and Metric units.
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
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![1. A 40 watts x 120 cm long fluorescent lamp produces 3200 lumens of light in a
dining room of 10 ft x 20 ft. Compute the illumination on the floor comparing the
English and Metric units.
2. The candle power of a source is 200 candela in all direction below the lamp. The
mounting height of the lamp is 6m. Find the illumination
a. Just below the lamp
b.
3 m horizontally away from the lamp on the ground
The total luminous flux in an area of 1.5m diameter around the lamp on the
ground
3. An 8m x 20m room is to be lighted at an average maintained of 50fc. How many
lamp lumens are required assuming 0.38 cu and 0.75 mf?
4. A warehouse will install incandescent lamps at a mounting height ratio of 1.5m.
The lamp will be mounted on a grid measuring 5 m x 5 m. What is the minimum
mounting height of the lamps?
5. Explain how the three point lighting being used in the pictures.
А.
В.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4aedd949-a2aa-425d-a08f-d0ed2dd7665a%2F39b64288-bf5c-4d1e-961c-6f9dfa614b46%2Fry4jsq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A 40 watts x 120 cm long fluorescent lamp produces 3200 lumens of light in a
dining room of 10 ft x 20 ft. Compute the illumination on the floor comparing the
English and Metric units.
2. The candle power of a source is 200 candela in all direction below the lamp. The
mounting height of the lamp is 6m. Find the illumination
a. Just below the lamp
b.
3 m horizontally away from the lamp on the ground
The total luminous flux in an area of 1.5m diameter around the lamp on the
ground
3. An 8m x 20m room is to be lighted at an average maintained of 50fc. How many
lamp lumens are required assuming 0.38 cu and 0.75 mf?
4. A warehouse will install incandescent lamps at a mounting height ratio of 1.5m.
The lamp will be mounted on a grid measuring 5 m x 5 m. What is the minimum
mounting height of the lamps?
5. Explain how the three point lighting being used in the pictures.
А.
В.
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