Magnetic compass

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Image
The magnetic compass is fitted on the upper bridge exactly center line of the ship   It is referred to as standard compass     1. D ry C ard    2. W et C ard   A compass point north because all magnets have two poles north pole, south pole.   The north pole of the one magnet attracted towards the south pole of another magnet     DRY CARD COMPASS   A light aluminum ring about 254mm in diameter is attached to a brass hub by silk cord which is threaded in and out through holes in the ring.   This tight silk cord is act like bicycle wheels.   There is no other connection or support between the ring and the hub.   Silk cord is used because it doesn’t shrink or stretch due to moisture or change in atmospheric temperature.     Card support: -     The bottom of the hub has small cap fi tt ed with a sapphire bearing surface.   This rests on a pivot tipped with iridium which is hard nonmagnetic metal....
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types of segregation as per imdg code

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Dangerous goods belonging to different classes cannot be stored together.they have to be segregated from one another and the segregation depends on the properties of substances in each class and the way they react with substances of another class. List of segregation as per IMDG CODE


TYPES OF SEGREGATION.

1.AWAY FROM :-May be carried in the same compartment or on deck provided a minimum horizontal separation  of 3m projected vertically is maintained.




2.SEPERATED FROM :- Can be carried in the same compartment if the intervening deck is resistant to fire and liquids, otherwise separate holds.On deck, horizontal separation of at least 6m.





3.SEPERATED BY A COMPLETE COMPARTMENT OR HOLD FROM:- These must be either a vertical or longitudinal separation by a complete compartment or hold and two bulkheads or deck resistant to fire and liquids.



4.SEPERATED LONGITUDINALLY BY AN INTERVENING COMPLETE COMPARTMENT OR HOLD FROM:-A vertically separation is not allowed. The packages must be horizontally separated by a complete compartment. On deck a horizontal separation of at least 24m is required and between "on deck" & "under deck " package , 24m plus an intervening compartment.



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Magnetic compass

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Image
The magnetic compass is fitted on the upper bridge exactly center line of the ship   It is referred to as standard compass     1. D ry C ard    2. W et C ard   A compass point north because all magnets have two poles north pole, south pole.   The north pole of the one magnet attracted towards the south pole of another magnet     DRY CARD COMPASS   A light aluminum ring about 254mm in diameter is attached to a brass hub by silk cord which is threaded in and out through holes in the ring.   This tight silk cord is act like bicycle wheels.   There is no other connection or support between the ring and the hub.   Silk cord is used because it doesn’t shrink or stretch due to moisture or change in atmospheric temperature.     Card support: -     The bottom of the hub has small cap fi tt ed with a sapphire bearing surface.   This rests on a pivot tipped with iridium which is hard nonmagnetic metal....
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