Deck Machinery introduction. Deck machinery on board ships depends mainly on the type of ship e.g. Geared cargo ships may use derricks or cranes for cargo handling whereas self unloading vessels have hoppers and conveyors to transport the cargo. Specialized ships may have heavy lift cranes to unload the cargo. Equipment for anchor handling and […]
Marine Auxiliary Machinery Read More »
RELIEF VALVE Relief valve is used to limit the pressure in a system within set limit. Opening of the relief vale is directly proportional to the increase in the vessel pressure. The relief valve open when pressure reached the specific set pressure limit and it is operated by operator. It activate at above the
DIFFERENCE BETWEEN RELIEF VALVE AND SAFETY VALVE Read More »
Engine: Engine is a machine which converts chemical energy into the heat energy and heat energy into the pressure energy and pressure energy in to the mechanical energy to perform the work. Classification of engine
MARINE DIESEL ENGINE & TERMINOLOGY Read More »
Main Engine Two stroke diesel engines are mainly used as a main engine onboard ship which helps to rotate the propeller of the ship by which ship moves. Working operation: In the two stroke diesel engine cycle is competed in two stroke of the piston. In two stroke of the piston crankshaft takes one revolution
Two stroke Diesel engine Read More »
Air conditioning is the control of humidity, temperature cleanliness and air motion. Winter conditioning relates to increasing temperature and humidity whilst summer condition relates to decreasing temperature and increasing humidity. The components of the system such as a compressor evaporator, oil separator, filter drier, condenser, and air handling unit.
AIR CONDITIONING SYSTEM ONBOARD SHIP Read More »
Advantages and Disadvantages of Positive Displacement Pumps Advantages Disadvantages PD pump has a low operating cost. These are less efficient pumps than dynamic pumps. These have a low initial cost. Low efficiency. They are best appropriate for high viscosity fluids. These can’t deliver pulsating free flow. It has a high-pressure ratio for small sizes. These
Advantages and Disadvantage of Various pumps: Gear, Vane, Positive displacement Read More »
Fasteners are used to join to or more than two things together mechanically. on temporary basis or permanent basis. different types of fasteners are used on board ship are given as follows Bolt Screw Studs Threaded Fasteners BOLT Bolt is very common fastener used on board ship there are different types of bolts used on
Valve is used to control the flow of the liquid and gases in pipe line. On board ship there are so many pipe lines so valve is most useful device to control the flow of the liquid. there are so many types of valve are used on board the ship. Some valves are listed belowÂ
Types of valve used on board ship Read More »
NOTE: THIS POST IS ONLY FOR PRACTICE IT DOES NOT TAKE ANY GUARANTEE TO PASS ANY KIND OF EXAM.
Marine engineering MCQ Read More »
Difference between 2 stroke and 4 stroke engine 2 Stroke diesel engine 4 Stroke diesel engine 1. 2 Stroke diesel engine is used for main propulsion purpose 1. 4 Stroke diesel engine is used to produce electricity onboard ship. 2. 2 stroke engine gives one power stroke in one revolution of crankshaft. 2. 4 Stroke
Difference between 2 stroke and 4 stroke engine Read More »
