Illumination Which lamp is best suited for lighting an International sports arena? Metal Halide Incandescent LED Compact Fluorescent Metal Halide Incandescent LED Compact Fluorescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Luminous flux Luminance Illuminance Luminous Intensity Luminous flux Luminance Illuminance Luminous Intensity ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the ratio of illuminance at a point 5m just below a lamp emitting 100 candelas and at a point 5m away from the first point on the same horizontal plane? 2√2 : 1 2:1 1: 2√2 1:2 2√2 : 1 2:1 1: 2√2 1:2 ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians / meter. radians. steredians. degree. radians / meter. radians. steredians. degree. 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 45 %. 20 %. 30 %. 70 %. 45 %. 20 %. 30 %. 70 %. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which among the following lamps has the maximum burning hours? Metal halide. LED. Compact Fluorescent. Incandescent. Metal halide. LED. Compact Fluorescent. Incandescent. ANSWER DOWNLOAD EXAMIANS APP
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