Illumination Which lamps can be directly connected to a solar cell? Compact Fluorescent Metal Halide Incandescent LED Compact Fluorescent Metal Halide Incandescent LED ANSWER DOWNLOAD EXAMIANS APP
Illumination A 1000 W bulb fitted with a reflector illuminates an area of 3 m x 3 m with an average illumination of 450 lux. If the bulb has and efficiency of 9 lumens / watt the efficiency of the reflector is 20 %. 45 %. 30 %. 70 %. 20 %. 45 %. 30 %. 70 %. ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? 754.2 lumens. 60 lumens. 0.001326 lumens. None of these. 754.2 lumens. 60 lumens. 0.001326 lumens. None of these. 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
Illumination The illumination at a point 5 meters below a lamp in 6 lux. The candle power of the lamp is 30 150. 200. 140. 30 150. 200. 140. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? Incandescent Fluorescent High pressure sodium vapour LED Incandescent Fluorescent High pressure sodium vapour LED ANSWER DOWNLOAD EXAMIANS APP
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