Safety Devices of All marine Equipment

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Safety Devices of all Marine Equipment used on board are mentioned here. What is Safety Device ? A safety device is a piece of...

What is a shaft generator ?

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What is a shaft generator ? Shaft Generator is an alternator driven by main propulsion unit through clutch and gearing to produce electricity. It can be...

How does the emergency generator start automatically ?

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How does the emergency generator start automatically ? It is activated by a under voltage relay. When there is blackout, the under voltage relay senses...

Propeller Drop

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What is Propeller Drop ? Propeller Drop is distance,drop due to its own weights. Due to the weight of propeller and the clearance developed due to...

General requirements of Cylinder oils

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General requirements of cylinder oil 1 It must have required level of Alkalinity (BN ). Base number is indicative of strength of Alkalinity usually KOH or...

What is the purposes of cylinder lubrication ?

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Purpose of cylinder lubrication 1.To seperate sliding surfaces with an unbroken oil film. 2.To form an effective seal between piston ring and liner surfaces to prevent...

lubricating oil properties

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lubricating oil properties These properties are dependent on duties a lubricant is expected to perform :- 1.Detergency :-Detergency of oil is obtained by adding some metallic...

What is volumetric efficiency ?Factors affecting volumetric efficiency ?

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bumping clearance, sluggish opening of valves, leakage past piston rings, insufficient inter stage cooling, choked suction, ambient temperature high.

How do I clean fuel oil duplex filter on ship

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Purge the standby filter before changing over. Changeover the filter. Drain the filter which was in use. Slacken the nut, and make sure there's no residual pressure...

Hydrophore System

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What is Hydrophore System ? Hydrophore System is an equipment used to maintain the water pressure provided to the multiple areas of the vessel at...