Is the ratio of the theoretical work requirement to the actual work required to be performed on the gas for compression and delivery.

Slang for anchor

The area (in sq inches) of the filter element that is exposed to the flow of air or fluid for effective filtering.

The vertical pole or spar that supports the boom and sails. a mast on a mechanically propelled vessel holds electronics antennas, lights, etc.

A labyrinth type filter having the active surfaces continuously splashed with oil. Most pollutants are absorbed by the oil which when circulated releases its pollutants, which sink by gravity to the bottom of the oil pan.

Standard cubic feet per minute., SCFM or scfm. Flow of free air measured at some reference point and converted to a standard set of reference conditions (e.g., 14.4 psia, 80

The surface of the water.

A bun-shaped cover placed over a radar scanner to prevent risk of fouling and to protect it from the weather.

The process of coating one metal with another, ordinarily applied to the coating of iron or steel with zinc. The chief purpose of galvanizing is to prevent corrosion.

Any body of rate tariffs that are not part of an agreement or conference system.

Capacity of a compressor is the full rated volume of flow of gas compressed and delivered at certain set conditions.

A ceremony performed on board ships when passengers or crew are crossing the equator for the first time during a voyage.

Misrepresenting freight or weight on shipping documents.

ACRONYM - non-lubricated compressor.

Direction or bearing of an object relative to a boat's heading.

Cool air pulled ashore by rising thermal air currents caused by the air inland rising as the land heats up

Caulker's name for the seam in the upper deck planking next to a ship's waterways. There was very little space to get at this seam, making it a difficult and awkward job. This is the origin of the expression "Between the devil and the deep blue sea, since ...

Covers for closing up hatchways.

A legal signature usually placed on the reverse of a draft; signifies transfer of rights from the holder to another party.