)Various types of pumps maintenance.2)other reactors/VAM m/c seal maintenance 3)reactors gearbox maintenance.4) vacuum pumps maintenance5) knowledge of various types of gaskets. 6) Pump repaing mainteance 7) Chilled Brine system Knowledge 8) Amonia Plant Knowledge9)Refrigeration Cycle Knowledge (both VCRS & VARS)10)CoolingTower,Condenser, & Chiller