Illumination The range of visual spectrum is 300nm - 1000nm. 300nm - 760nm. 480nm - 760nm. 480nm - 1000nm. 300nm - 1000nm. 300nm - 760nm. 480nm - 760nm. 480nm - 1000nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? 0.001326 lumens. 754.2 lumens. 60 lumens. None of these. 0.001326 lumens. 754.2 lumens. 60 lumens. None of these. ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on reflection factor. reduction factor. None of these utilization factor. reflection factor. reduction factor. None of these utilization factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? Incandescent High pressure sodium vapour Fluorescent LED Incandescent High pressure sodium vapour Fluorescent LED ANSWER DOWNLOAD EXAMIANS APP
Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to beam factor. waste light factor. utilization factor. absorption factor. beam factor. waste light factor. utilization factor. absorption factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination A 200 candle power lamp is hung 4 m above the centre of circular area of 5 m diameter. The illumination at centre of the area is 18.5 lux. 12.5 lux. 13.5 lux. 17.5 lux. 18.5 lux. 12.5 lux. 13.5 lux. 17.5 lux. ANSWER DOWNLOAD EXAMIANS APP
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