Illumination Luminous efficacy of a typical HPSV lamp is in between 120 - 200 lm/watt. 40 - 70 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. 120 - 200 lm/watt. 40 - 70 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of steredians. degree. radians. radians / meter. steredians. degree. radians. radians / meter. ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on None of these reduction factor. reflection factor. utilization factor. None of these reduction factor. reflection factor. utilization factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? LED Incandescent Fluorescent High pressure sodium vapour LED Incandescent Fluorescent High pressure sodium vapour ANSWER DOWNLOAD EXAMIANS APP
Illumination Unit of luminous flux is candela. lux. steradians. lumens. candela. lux. steradians. lumens. ANSWER DOWNLOAD EXAMIANS APP
Illumination The solid angle subtended by an area of 2400 cm2 on the surface of a sphere of diameter 1.2 m is 3 / 2. 2 / 3. 1 / 3. 2 / 5. 3 / 2. 2 / 3. 1 / 3. 2 / 5. ANSWER DOWNLOAD EXAMIANS APP
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