INCLINING EXPERIMENT
This experiment is carried out on new ships and those that have had large structural alterations made, to find out the new centre of gravity (kg) and metacentric height (gm) and further to know...
SHAFT EARTHING
When steel is immersed in sea water (e.g. a ships hull) small galvanic current are initiated at anodic areas of the metal surface, causing corrosion.
Such corrosion prevail at the stern of a ship, where...
Why Longitudinal corrugated bulkhead have horizontal corrugation?
Longitudinal Bulkhead are provided to add longitudinal strength to the ship. ...
Sweep Test
The aim of the test is to show the correlation between the engine’s corrosive impact and the lube oil’s ability to counter act this.
The fastest way to evaluate the corrosive behavior of an...
MAIN SWITCH BOARD
Survey of MSB
Proper cleaning to be
carried internally as well as externally normally carried out when board is
completely dead (all generator stopped and prime mover locked off). Inspect for
dirt and dust (electro clean and vacuum...
Shop trial & Sea Trial
Here we will discuss the brief nature of both , what all procedures are carried out during shop trials and sea trials.
A. Shop Trial
...
MARINE DIESEL ENGINES NOTATIONS
There has been too much puzzle
with regards to the notations used for the Marine Diesel Engines. One can
consult the engine manual & find out what such notations means.
However, this article will
provide explanation for...
INTERNATIONAL GAS CARRIER CODE (IGC CODE)
The International Code of the Construction & Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code), accepted by the resolution MSC.5(48), has been obligatory under SOLAS chapter VII since 1 July 1986. The...
BOILER SURVEY
Twice in 5 years
Open the boiler vent valve when pressure inside is just above the atm pressure to ensure that there is no vacuum in the boiler Allow the boiler to cool and...
