written test: 1) periodical and monthly maintenance are called preventive or pan

written test: 1) periodical and monthly maintenance are called preventive or panned maintenance.

2) Mechanical seal parts and their material. 3)Urea plant main parts and their construction material details.4)Name diagram of the given turbine5) Turbine nomenclature like API name.6)All types of corrosion like Galvanic and oxide with example.7)Parts of gate valve and its usage. diaphragm gate valve usage. etc.....

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