Illumination The work of ballast in a fluorescent tube is to both ‘a’ and ‘b’. limit the flow of current. None of these. provide a kick start when voltage is induced. both ‘a’ and ‘b’. limit the flow of current. None of these. provide a kick start when voltage is induced. ANSWER DOWNLOAD EXAMIANS APP
Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to waste light factor. absorption factor. beam factor. utilization factor. waste light factor. absorption factor. beam factor. utilization factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Illumination can be expressed in radians. lumens. lux. candela. radians. lumens. lux. candela. ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on reduction factor. None of these utilization factor. reflection factor. reduction factor. None of these utilization factor. reflection factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has a negative Colour Rendering Index (CRI)? LED Low pressure sodium vapour High pressure sodium vapour Fluorescent LED Low pressure sodium vapour High pressure sodium vapour Fluorescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? None of these Cone cells Both ‘a’ and ‘b’ Rod cells None of these Cone cells Both ‘a’ and ‘b’ Rod cells ANSWER DOWNLOAD EXAMIANS APP
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