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IMO IS ON FULL SPEED AHEAD WITH COP21 AGREEMENT

Image Credit: www.imo.org The Paris Climate Change conference (COP21) 2015 Agreement identifies a clear goal on two objectives: holding the increase in the global average temperature to well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5 °C above pre-industrial levels. IMO has contributed over last decade and will …

COC ORAL EXAM PREPARATION (PART- 11): PROPULSION MACHINERY

Image Credit: Wikipedia.org FUEL INJECTION TIMING Checking of fuel injection pump timing: Turn 1 piston to TDC at the beginning of firing stroke. Turn backward to a point, a little earlier than fuel injection point. Shut fuel supply to engine, remove No. 1 fuel pump delivery valve assembly and put a bent pipe. Open fuel supply and when fuel lever is put to running position, oil …

COC ORAL EXAM PREPARATION (PART-10): SHIP CONSTRUCTION

Image Credit: wikipedia.org Definitions and Ship’s Dimensions Hull: The structural body of a ship including shell plating, framing, decks and bulkheads.  Afterbody : That portion of a ship’s hull abaft midships.  Forebody: That portion of a ship’s hull forward midships.  Bow : The forward of the ship  Stern : The after end of the ship …

COC ORAL EXAM PREPARATION (PART – 9): REFRIGERATION & AIR CONDITIONER

Image Credit: almaco.cc Refrigeration:  What is a Refrigerant? Refrigerants are used as working substances in a Refrigeration systems. Fluids suitable for refrigeration purposes can be classified into primary and secondary refrigerants. Primary refrigerants are those fluids, which are used directly as working fluids, for example in vapour compression and vapour absorption refrigeration systems. These fluids …

COC ORAL EXAM PREPARATION (PART – 8): AIR COMPRESSOR

Air Compressor Image Credit: leelloyds.com Effects of leaking valves in Air Compressor: First Stage Suction: Reduce air delivery Reduce 2nd stage suction pressure Unload the compressor Increase running time. First Stage Delivery: Reduce air delivery Increase discharge temperature Less air drawn in, due to high-pressure air leaking back into cylinder.   Second Stage Suction: Reduce air …

VENTILATION ARRANGEMENT FOR HAZARDOUS SPACES IN ENGINE ROOM

The following engine room spaces are very hazardous on-board the ship and therefore, a special ventilation arrangement should be provided for safe entry: (a) CO2 storage compartment (b) Battery room (c) Purifier flat (d) Refrigerating machinery space (e) Shaft tunnel Ventilation Arrangement for Confined Spaces of Ships: (a) CO2 storage compartment – CO 2 compartment …

COC ORAL EXAM PREPARATION (PART-7) – MARITIME SECURITY

Image Credit: www.msecurity.ru When do the security measures come into force ? – 1st July, 2004. SOLAS amendments adopted in December 2002 : Chapter V: – Automated Identifications Systems(AIS) Chapter XI-1: -Ship identification number -Continuous Synopsis Record (CSR) Chapter XI-2: -Measures to enhance maritime security -International Ship and Port Facility Security (ISPS) Code (Parts A & …