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Routine maintenance carried out on deck machineries Deck machinery includes the following: General Maintenance: Maintenance schedule for hydraulic systems General Maintenance: Maintenance schedule for Windlass / Mooring Winch. Maintenance schedule for Cranes Maintenance routine for prime mover of deck machineries Maintenance of hatch over. Working of an accumulator and its purpose in the hydraulic circuit…
Why is it necessary to treat the sewage generated on board? Reason for treatment of sewage: Treatment before pumping: Chemical Treatment Method (Disinfecting and communiting plant): Functioning of a biological sewage treatment plant Regulation for condition and discharging sewage overboard Discharge of sewage from ships other than passenger ships in all areas and discharge of…
Typical domestic refrigeration system on board a ship Safeties in the domestic refrigeration system High Pressure Cut-Outs: Low Pressure Cut-outs: Oil Failure Cut-Outs: Safety Valves or bursting discs: How is refrigerant leakage detected? What is the storage temperature of Vegetable, Meat and Fish in general? Leak detection: Indications: Detection: Detector Lamp: Temperature: For meat room…
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Shipboard electrical distribution system Parallel operation of Generators. Necessary conditions required prior to the synchronizing of electrical alternators A – Two alternators about to be connected in parallel. B – The same machines showing possible arrangement of synchronizing lights. Purpose of providing circuit breakers and fuses in electrical distribution system Fuses: Rewireable fuses: Cartridge fuses:…
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SOLAS requirements for steering gear How a rudder order signal results in achieving the desired rudder angle Hunting Gear: Two ram steering system Working: 4-ram hydraulic steering gear system Description of the system: Working: How safematic design is achieved in steering in case of Tankers of above 10000 GRT? Or Explain how automatic fail-safe arrangement…
Reverse Osmosis System of Fresh water generation on board Working: Osmotic pressure & briefly explain why pressure osmosis applied in RO system is very high Low-pressure evaporator. How waste heat from main engine is used for producing fresh water on board the ship? Working: Description a domestic fresh water generator used on board a ship….
Admiralty Coefficient: The admiralty coefficient may be regarded as constant for similar ships at their corresponding speeds. Fuel Coefficient Pitch of propeller Percentage apparent slip: Percentage Real Slip: Efficiency of Machine: Critical Speed of Engine (Bared Speed Range): Hunting Gear Superheated Steam: Specific fuel oil consumption and how it is determined Propeller drop & Rudder…
Open feed water system used for boilers and line diagram of a complete feed water system for an auxiliary boiler showing the direction of flow in all lines. How the feed supply to the boiler is regulated. Advantages and disadvantages of water tube boiler and Smoke tube boiler Advantages of water tube boiler: Disadvantages of…
Purpose of boiler on ships? Steam Generation: Propulsion: Power Generation: Heating: Cargo Operations: Auxiliary Machinery: How circulation of water takes place in such boiler Smoke tube aux. boiler Important mountings of a boiler stating their use. Water Gauge: Safety Valve: Main Steam Stop Valve: Auxiliary Stop Valve: Main Feed Check Valve: Blow Down Valve: Air…
IMO Resolution MSC.581(110) Revised Recommendations for Entering Enclosed Spaces Aboard Ships Entering enclosed spaces remains one of the most dangerous routine operations on board ships, responsible for a significant number of fatalities every year. In response to continuing accidents and near-misses, the International Maritime Organization (IMO) adopted Resolution MSC.581(110) at the 110th session of the…
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