An essential document for officers and seamen as it serves an official certificate confirming sea experience in the employment for which he was engaged.

Related Terms

IAPP CERTIFICATE

A certificate entitled the International Air Pollution Prevention Certificate issued in accordance with the Convention.

EIAPP CERTIFICATE

The Engine International Air Pollution Prevention Certificate which relates to NOx emissions.

CLEAN BILL OF HEALTH

A certificate issued by a port indicating that the ship carries no infectious diseases. Also called a pratique.

INTERNATIONAL LOAD LINE CERTIFICATE

A certificate which gives details of a ship's freeboard and states that the ship has been surveyed and the appropriate load lines marked on her sides. The certificate is issued by a classification society or coastal authority such as a coast guard.

SEAWORTHINESS CERTIFICATE

A certificate issued by a classification society surveyor to allow a vessel to proceed after she has met with a mishap that may have affected its seaworthiness. It is frequently issued to enable a vessel to proceed, after temporary repairs have been effected, to another port where permanent repairs are then carried out.

INTERNATIONAL TONNAGE CERTIFICATE

A certificate issued to a shipowner by a government department in the case of a ship whose gross and net tonnages have been determined in accordance with the International Convention of Tonnage Measurement of Ships. The certificate states the gross and net tonnages together with details of the spaces attributed to each.

AURORA

A luminous phenomenon due to electrical discharges in the atmosphere, probably confined to the thin air high above the surface of the earth It is most commonly seen in high latitudes where it is most frequent during periods of greatest sunspot activity. If it occurs in the Northern Hemisphere, it is called aurora borealis or northern lights; and if in the Southern, aurora Australis.

SEAWORTHINESS 
CERTIFICATE

A certificate issued by a classification society surveyor allowing a vessel with a mishap affecting its seaworthiness to proceed to another port where permanent repairs can be carried out.

GAS TIP

The part of a burner which discharges the gas fuel via one or more openings into the furnace. The size, arrangement, and angular disposition of the openings in the tip have a major effect on the size and shape of the flame.

OIL TIP

Part of the oil gun which discharges the atomized fuel oil mixture into the furnace through multiple openings. The hole pattern in the tip has a great effect on flame size and shape.

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