Illumination Solid angle is expressed in terms of radians. degree. radians / meter. steredians. radians. degree. radians / meter. steredians. ANSWER DOWNLOAD EXAMIANS APP
Illumination ___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions. Absorption factor. Maintenance. Depreciation. Utilization. Absorption factor. Maintenance. Depreciation. Utilization. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela is the unit of which? Wavelength. Frequency. Luminous intensity. Luminous flux. Wavelength. Frequency. Luminous intensity. Luminous flux. ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? To convert DC to AC Both ‘a’ and ‘b’ None of these To convert AC to DC To convert DC to AC Both ‘a’ and ‘b’ None of these To convert AC to DC ANSWER DOWNLOAD EXAMIANS APP
Illumination The work of ballast in a fluorescent tube is to limit the flow of current. both ‘a’ and ‘b’. None of these. provide a kick start when voltage is induced. limit the flow of current. both ‘a’ and ‘b’. None of these. provide a kick start when voltage is induced. ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficacy of a typical HPSV lamp is in between 40 - 70 lm/watt. 120 - 200 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. 40 - 70 lm/watt. 120 - 200 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. ANSWER DOWNLOAD EXAMIANS APP
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