Illumination ___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions. Utilization. Depreciation. Maintenance. Absorption factor. Utilization. Depreciation. Maintenance. Absorption factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 70 lumens / watt. 40 lumens / watt. 30 lumens / watt. 60 lumens / watt. 70 lumens / watt. 40 lumens / watt. 30 lumens / watt. 60 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of degree. radians. radians / meter. steredians. degree. radians. radians / meter. steredians. ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 400 nm. 700 nm. 600 nm. 500 nm. 400 nm. 700 nm. 600 nm. 500 nm. 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? 2 4 5 6 2 4 5 6 ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? Fluorescent High pressure sodium vapour Incandescent LED Fluorescent High pressure sodium vapour Incandescent LED ANSWER DOWNLOAD EXAMIANS APP
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