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