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MEO Class 4

  • Deadweight
  • Gross tonnage
  • Portable fire extinguisher
  • Freeboard
  • Purpose of Freeboard
  • Why tankers have less freeboard
  • Rudder drop
  • Reserve Buoyancy
  • Purifier Room which extinguisher
  • Hypermist system operation and how to test onboard?
  • Class A bulkhead?
  • Panting & Pounding?
  • Emergency generator regulation?
  • Expansion tank purpose & bubbling reason
  • Why manhole doors are elliptical
  • Exhaust valve operation
  • OMD full explain with drawing
  • 2 stroke valve timing diagram
  • Overlap
  • Boiler mountings and trips and alarms
  • Cold corrosion
  • Thrust block with propeller shafting arrangements & how it takes thrust.
  • Cam moment wrt crankshaft in 4stroke & 2 stroke
  • Tie rod break how to remove
  • Tappet clearance zero what will happen
  • How to change clarifier to purifier
  • Boiler starting from cold
  • Pump n motor alignment methods first you correct vertical or horizontal alignment

  • Decider frosting in suction side of ref causes n how to rectify it
  • Boiler water test why ?
  • Rocker arm lubrication
  • Generator working principle
  • Moisture in refrigeration system how to remove
  • Heat exchanger tube leaking, changing procedure?
  • Refer charging procedure?

  • Starters- Star Delta and DOL
  • Smoke detector principle
  • Fuses
  • Single phasing
  • Types of starter
  • Which motor is used in different starters
  • Paralleling of generator
  • Why ACB closed at 11 o clock
  • Open circuit


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