Illumination ___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions. Maintenance. Utilization. Depreciation. Absorption factor. Maintenance. Utilization. Depreciation. Absorption factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Luminous flux Luminance Illuminance Luminous Intensity Luminous flux Luminance Illuminance Luminous Intensity ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? None of these To convert DC to AC Both ‘a’ and ‘b’ To convert AC to DC None of these To convert DC to AC Both ‘a’ and ‘b’ To convert AC to DC ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on reflection factor. reduction factor. utilization factor. None of these reflection factor. reduction factor. utilization factor. None of these ANSWER DOWNLOAD EXAMIANS APP
Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to utilization factor. beam factor. absorption factor. waste light factor. utilization factor. beam factor. absorption factor. waste light factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 400 nm. 500 nm. 600 nm. 700 nm. 400 nm. 500 nm. 600 nm. 700 nm. ANSWER DOWNLOAD EXAMIANS APP
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