Illumination What is the work of a driver in case of an LED? None of these Both ‘a’ and ‘b’ To convert DC to AC To convert AC to DC None of these Both ‘a’ and ‘b’ To convert DC to AC To convert AC to DC ANSWER DOWNLOAD EXAMIANS APP
Illumination The illumination at a point 5 meters below a lamp in 6 lux. The candle power of the lamp is 30 140. 150. 200. 30 140. 150. 200. ANSWER DOWNLOAD EXAMIANS APP
Illumination Unit of luminous flux is lumens. lux. steradians. candela. lumens. lux. steradians. candela. ANSWER DOWNLOAD EXAMIANS APP
Illumination The work of ballast in a fluorescent tube is to both ‘a’ and ‘b’. provide a kick start when voltage is induced. None of these. limit the flow of current. both ‘a’ and ‘b’. provide a kick start when voltage is induced. None of these. limit the flow of current. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has a negative Colour Rendering Index (CRI)? LED Low pressure sodium vapour Fluorescent High pressure sodium vapour LED Low pressure sodium vapour Fluorescent High pressure sodium vapour ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on reduction factor. reflection factor. None of these utilization factor. reduction factor. reflection factor. None of these utilization factor. ANSWER DOWNLOAD EXAMIANS APP
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