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MEO Class 4 Orals

  • Margin line
  • Camber
  • Rise of floor
  • Bilge keel
  • Rope guard
  • Marpol Annex 6 full regulations
  • Then cross questions upon Nox technical file,
  • Equipments under nox
  • Classification of Life Saving Appliances
  • Name of all LSA
  • life jacket regulations
  • Chemical of DCP
  • A 60 explain
  • dead weight and lightweight
  • difference between port state and flag state inspection?
  • permeability of space?
  • isps code? Difference between level 2 and 3?
  • what is marpol??
  • definition of noxious liquid substances??
  • What is Solas Chapter 12 & Explain?

  • ME Exhaust valve working and construction and cross questions
  • ME automatic start air valve working and construction and cross questions
  • AE cylinder head cooling passages and flow, how it happens
  • Compressor safeties
  • Purpose of intercooler and it's location
  • Bumping clearance and it's purpose
  • Mounting on AE cylinder head
  • Types of lubrication
  • Explain boundary lubrication
  • Explain hydrostatic lubrication
  • Why vacuum condenser after copt
  • Types of turbine
  • Impulse turbine and reaction turbine blade diagram
  • quick closing valve function and diagram
  • boiler alarms and cut out
  • difference between 2 stroke piston and 4 stroke piston
  • scuffing and cloverleafing
  • Phosphate test for what purpose and how to scale deposit removed
  • In all units of main engine power producing non uniformly ..what will be effect.
  • what is bhp and ihp?
  • how to calculate power in main engine in terms of kw?
  • purifier desludge procedure??
  • generator not starting on air?
  • how exhaust valve of main engine is working and how it's indicated?
  • piston ring movements?
  • reason for piston ring breakdown???

  • What are the welding defects? What is porosity? What is inclusion?
  • Various Schedule of pipe? How is the classification done? Sch 40 and sch 80 can withstand how much press?
  • How do u carry out ME crankcase inspection?
  • What is the maintenance routine on deck hyd machinary(before arrival on port)...gear case oil level, foundation bolts, bearings, greasing, and importantly check the filter, and gravity tank, checking press point
  • 1500 AE tappet what position is fuel pump many tdc's are coming in 4stroke, what is the value of exhaust tappet?
  • How to check trueness of a shaft....procedure
  • GE fuel injector overhauling..
  • Tappet clearance for generator
  • Lantern rings function drawing
  • Hydrophore tank pump frequently cut in cut out reasons , cut in out pressure..
  • Crankshaft deflection why we do how we do ,
  • Main engine scavenge space inspection what do we check


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Load Line & Why it is Important

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Bilge Injection Valve

Bilge Injection is a valve that enables the engine room bilges to be pumped out directly overboard in the event of an emergency such as flooding. The valve is normally fitted to the end of a branch connection with the main sea water suction line. This enables large main seawater cooling pumps to be used as a bilge pump in an emergency. Emergencies like fire and flooding involve the use of seawater. If there is a fire, seawater is the biggest resource of water available in the sea. Similarly, if it involves flooding of the engine room, cargo spaces or any other place on the ship for that matter; you would again require pumping the sea water out of the ship. In both these cases, you require pumps.  There are two valves in close proximity namely main injection valve and bilge injection valve. Both of them have their own independent controls. The diameter of the bilge injection valve is kept nearly 66% of the main valve diameter which draws water directly from the sea through the