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Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?
- a)Lumens received on the working plane/Lumens emitted by the lamp
- b)Lumens received on the working plane/Lux of the lamp
- c)Lux of the lamp/Lumens received on the working plane
- d)Lux of the lamp/Foot-candle on the working plane
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Which of the following statements correctly defines "Utilization fact...
Coefficient of utilization or utilization factor: It is defined as the ratio of a total number of lumens reaching the working plane to the total number of lumens emitting from the source.
Important Point:
Maintenance factor: It is defined as the ratio of illumination under normal working conditions to the illumination when everything is clean.
Its value is always less than 1, and it will be around 0.8. This is due to the accumulation of dust, dirt, and smoke on the lamps due to which they emit less light than that they emit when they are clean. Frequent cleaning of the lamp will improve the maintenance factor.
Depreciation factor: It is defined as the ratio of initial illumination to the ultimately maintained illumination on the working plane.
Depreciation factor = 1 / maintenance factor
Its value is always more than 1.
Most Upvoted Answer
Which of the following statements correctly defines "Utilization fact...
Definition of Utilization factor
Utilization factor or Co-efficient of Utilization is a measure of the efficiency of a lighting system. It is defined as the ratio of the lumens received on the working plane to the lumens emitted by the lamp.
Explanation
The utilization factor is an important factor in lighting design as it helps to determine the amount of light that is actually used. It takes into account the reflectance of the surfaces in the room and the distribution of light from the lamp. The utilization factor is usually expressed as a percentage.
The working plane is the surface where the light is required, such as a desk or a table. The lumens received on the working plane are the amount of light that actually falls on the working plane. The lumens emitted by the lamp are the total amount of light that is emitted by the lamp.
Calculation of Utilization factor
The utilization factor can be calculated using the following formula:
Utilization factor = Lumens received on the working plane/Lumens emitted by the lamp
For example, if a lamp emits 1000 lumens and the working plane receives 500 lumens, the utilization factor would be 0.5 or 50%.
Importance of Utilization factor
The utilization factor is important in lighting design as it helps to determine the amount of light that is actually used. A high utilization factor means that more light is being used, while a low utilization factor means that more light is being wasted. By optimizing the utilization factor, it is possible to create a lighting system that is both energy-efficient and effective.
Utilization factor or Co-efficient of Utilization is a measure of the efficiency of a lighting system. It is defined as the ratio of the lumens received on the working plane to the lumens emitted by the lamp.
Explanation
The utilization factor is an important factor in lighting design as it helps to determine the amount of light that is actually used. It takes into account the reflectance of the surfaces in the room and the distribution of light from the lamp. The utilization factor is usually expressed as a percentage.
The working plane is the surface where the light is required, such as a desk or a table. The lumens received on the working plane are the amount of light that actually falls on the working plane. The lumens emitted by the lamp are the total amount of light that is emitted by the lamp.
Calculation of Utilization factor
The utilization factor can be calculated using the following formula:
Utilization factor = Lumens received on the working plane/Lumens emitted by the lamp
For example, if a lamp emits 1000 lumens and the working plane receives 500 lumens, the utilization factor would be 0.5 or 50%.
Importance of Utilization factor
The utilization factor is important in lighting design as it helps to determine the amount of light that is actually used. A high utilization factor means that more light is being used, while a low utilization factor means that more light is being wasted. By optimizing the utilization factor, it is possible to create a lighting system that is both energy-efficient and effective.
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Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer?
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Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer?.
Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways.
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Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following statements correctly defines "Utilization factor" or "Co-efficient of Utilization"?a)Lumens received on the working plane/Lumens emitted by the lampb)Lumens received on the working plane/Lux of the lampc)Lux of the lamp/Lumens received on the working planed)Lux of the lamp/Foot-candle on the working planeCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Railways tests.
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