Question
Download Solution PDFWhich of following relations is true, considering illumination?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFMaintenance factor
The maintenance factor is defined as the ratio of the illumination under normal working conditions to the illumination when the things are perfectly clean.
Normally, the value of the maintenance factor is less than unity, and in practice, it will be around 0.8
Depreciation factor
It is the inverse of the maintenance factor.
\(DF={1\over MF}\)
\(DF={1\over Less \space than \space 1}\)
DF = More than 1
∴ The value of the depreciation factor is more than unity.
Last updated on May 29, 2025
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