LEVEL CONTROL OF THE PROCESS VESSEL Srinivas Tadepalli, Abdelrahman Gamal Hassan Gadallah Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia K.S.R. Murthy University of Petroleum and Energy Studies, Dehradun, Uttarakhand PAGE NO:74-90 DOI:10.37896/MOENIA10.4/308