Department of Computer Engineering electronic workshop in OUI 50m long, 25m wide and 10m to trusses, is to be illuminated to a level of 200lux. The utilization and maintenance factors are respectively 0.54 and 0.8. Make a scale drawing of plan of the shop and set out the required lighting points, assuming the use of tungsten lamps and depressive metallic reflectors. Design for the lighting assuming a lamp efficiency of 130lumens per watt.​