Tools Knowledge, Basic Component Use, Mechanical Diagram , Electrical Diagram , Ac Non Inverter Compressor Or Inverter Compressor , Installation Repairing and Service, Gas Charging, AC-DC Motor Knowledge etc.
First aid covers essential procedures. Welding involves tools, A.C./D.C. machines, oxy-acetylene gases, joints, symbols, positions, arc principles, electrodes, and regulators. Proper maintenance and addressing defects ensure quality outcomes.