Illumination Which among the following lamps has the maximum burning hours? Incandescent. Metal halide. LED. Compact Fluorescent. Incandescent. Metal halide. LED. Compact Fluorescent. ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficacy of a typical HPSV lamp is in between 70 - 120 lm/watt. 40 - 70 lm/watt. 120 - 200 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. 40 - 70 lm/watt. 120 - 200 lm/watt. 10 - 40 lm/watt ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has a negative Colour Rendering Index (CRI)? Low pressure sodium vapour LED High pressure sodium vapour Fluorescent Low pressure sodium vapour LED High pressure sodium vapour Fluorescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 40 lumens / watt. 30 lumens / watt. 70 lumens / watt. 60 lumens / watt. 40 lumens / watt. 30 lumens / watt. 70 lumens / watt. 60 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to absorption factor. beam factor. waste light factor. utilization factor. absorption factor. beam factor. waste light factor. utilization factor. 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 %. 30 %. 20 %. 70 %. 45 %. 30 %. 20 %. 70 %. ANSWER DOWNLOAD EXAMIANS APP
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