• Diesel engine and generators operation.• Maintenance for engine and generators (head cylinder/ignition pump repair).• Pump system (centrifugal, screw, reciprocating) operation and maintenance.• Starting system operation (air/hydraulic).• Cooling system operation (air/water/oil).• Operation of purifying system and maintenance.• Bunkering operation.• Watch keeping.• Check the quality of piping systems like fuel system, lob oil system, sea water system and fresh water system and how to check main engine and make test for it.• Check the quality of pumps, generators, boiler, compressors and separators.• For hull how to remove the old paints and how to repaint it.• For rudder and propeller how to check if there are any (cracks, failures).