Illumination ___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions. Absorption factor. Utilization. Depreciation. Maintenance. Absorption factor. Utilization. Depreciation. Maintenance. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has a negative Colour Rendering Index (CRI)? LED Fluorescent High pressure sodium vapour Low pressure sodium vapour LED Fluorescent High pressure sodium vapour Low pressure sodium vapour ANSWER DOWNLOAD EXAMIANS APP
Illumination A 1000 W bulb fitted with a reflector illuminates an area of 3 m x 3 m with an average illumination of 450 lux. If the bulb has and efficiency of 9 lumens / watt the efficiency of the reflector is 45 %. 20 %. 30 %. 70 %. 45 %. 20 %. 30 %. 70 %. 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 In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to utilization factor. waste light factor. absorption factor. beam factor. utilization factor. waste light factor. absorption factor. beam factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 30 lumens / watt. 70 lumens / watt. 60 lumens / watt. 40 lumens / watt. 30 lumens / watt. 70 lumens / watt. 60 lumens / watt. 40 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
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