Illumination Total flux or lumens required in any lighting scheme depends inversely on utilization factor. reduction factor. reflection factor. None of these utilization factor. reduction factor. reflection factor. None of these ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 500 nm. 700 nm. 600 nm. 400 nm. 500 nm. 700 nm. 600 nm. 400 nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? Incandescent LED Fluorescent High pressure sodium vapour Incandescent LED Fluorescent High pressure sodium vapour ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians / meter. radians. degree. steredians. radians / meter. radians. degree. steredians. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Both ‘a’ and ‘b’ Rod cells Cone cells None of these Both ‘a’ and ‘b’ Rod cells Cone cells None of these ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 40 lumens / watt. 60 lumens / watt. 30 lumens / watt. 70 lumens / watt. 40 lumens / watt. 60 lumens / watt. 30 lumens / watt. 70 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
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