What is the more accurate formula to convert wet concrete to dry aggregate instead of the 54% method?919
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what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field
Mention what is modeling studio?
It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.