Illumination Which lamp has the best Colour Rendering Index (CRI)? High pressure sodium vapour LED Fluorescent Incandescent High pressure sodium vapour LED Fluorescent Incandescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians / meter. steredians. radians. degree. radians / meter. steredians. radians. degree. 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 17.5 lux. 12.5 lux. 13.5 lux. 18.5 lux. 17.5 lux. 12.5 lux. 13.5 lux. 18.5 lux. 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. utilization factor. waste light factor. absorption factor. beam factor. utilization factor. waste light factor. absorption factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the number of lamps, each having 300 lumens, required to obtain an average illuminance of 50 lux on a 4m × 3m rectangular room? 5 4 6 2 5 4 6 2 ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Luminous Intensity Luminous flux Illuminance Luminance Luminous Intensity Luminous flux Illuminance Luminance ANSWER DOWNLOAD EXAMIANS APP
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