Marine Engineering

Rajeev Jassal
Rajeev Jassal Master

In my opinion, we do not generally need to keep the steering motor on while alongside. But while alongside at a berth/port with current (such as in river ports), it is strongly advised to keep at least one steering motor on.

This would prevent the rudder to move away from its mid-ship position due t

Aruna Liyanage
Aruna Liyanage Third Engineer

volumetric efficiency of air compressor is the ratio (or as a percentage) between the volume of air drawn in to the cylinder and sweft volume.

Rajeev Jassal
Rajeev Jassal Master

The issue was raised by Marshall Island which proposed that the cooking oil should be allowed to be transferred to sludge tank and disposed of as per MARPOL Annex 1 requirements.

Many countries opposed this proposal.

After careful discussion on this topic, MEPC decided that cooking oil shou

Rajeev Jassal
Rajeev Jassal Master

The only area where incinerator cannot operate is ports, harbours, and estuaries. An estuary is the wide part of the river that nears the sea.

The incinerator can be operated in SECA also but only outside the port limits.

There is no regulation that prohibits the ship to burn residues generated

Mohammadreza Sarfi
Mohammadreza Sarfi Chief Officer

The "Propeller Pitch" is a technical term for one of Propeller characteristics.

It is the displacement a propeller makes in a complete spin of 360° degrees. This means that if we have a propeller of 40” pitch it will advance 40 inches for every complete spin as long as this is m

Rajeev Jassal
Rajeev Jassal Master

The limit of supplementary fund is too big. It is 700 Millions SDR. 

If you think this would be lesser in USD, you would be wrong. 700 Millions SDR is equal to 952.51 US Dollars

That is huge amount. There are many factors that indicates that this amount may not see its limit

Rahul Sharma
Rahul Sharma Master

For a reversible engine we need 12 and for non reversible engine 6 consecutive starts. Requirement not sure but I think its a class requirement.

Rajeev Jassal
Rajeev Jassal Master

The most effective and economic way of monitoring benzene during bunkering is by the use of Drager pump and Drager tubes. GASTEC is another maker of these kind of equipments. In these equipments, we have a pump and we have tubes for detecting a particular kind


Brush type armature is always tipical for DC generation along with AC, that is not common nowadays for AC generation; some AC generation on the old marine use still use brushes on the excitatrix, same have been replaced by electronic components.

Rajeev Jassal
Rajeev Jassal Master

Economical speed is the rpm at which an engine can be run where consumption of fuel is minimum. 

Now many of us confuse this with specific fuel consumption and other technical terms like this. Economical speed is for saving the fuel and at what rpm we can save