Illumination Which lamp has the best Colour Rendering Index (CRI)? LED Incandescent High pressure sodium vapour Fluorescent LED Incandescent High pressure sodium vapour Fluorescent ANSWER DOWNLOAD EXAMIANS APP
Illumination The work of ballast in a fluorescent tube is to None of these. both ‘a’ and ‘b’. limit the flow of current. provide a kick start when voltage is induced. None of these. both ‘a’ and ‘b’. limit the flow of current. provide a kick start when voltage is induced. ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 700 nm. 500 nm. 600 nm. 400 nm. 700 nm. 500 nm. 600 nm. 400 nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? 754.2 lumens. 0.001326 lumens. 60 lumens. None of these. 754.2 lumens. 0.001326 lumens. 60 lumens. None of these. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has a negative Colour Rendering Index (CRI)? Low pressure sodium vapour Fluorescent LED High pressure sodium vapour Low pressure sodium vapour Fluorescent LED High pressure sodium vapour ANSWER DOWNLOAD EXAMIANS APP
Illumination ___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions. Utilization. Maintenance. Absorption factor. Depreciation. Utilization. Maintenance. Absorption factor. Depreciation. ANSWER DOWNLOAD EXAMIANS APP
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