Is the term used for average atmospheric air at sea level in a temperature zone where it contains some moisture. It is defined in the ASME Test Code For Displacement Compressors as being at 14.696 psiA, 68

On a square-rigged ship, a tackle used for hoisting casks and provisions.

A portion of the discharge gas is redirected through a heat exchanger and then expanded back to suction pressure, where it is mixed with normal suction gas stream and commonly used to compensate for process flow demands.

An angle or channel from deck beam to shell frame taking the place of a bracket.

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.

A framing of metal fitted over an opening in a deck, with glass or plexiglass inserted for the admission of light into a cabin, engine room, etc.

Relay to all others in order (a signal repeated from one ship to the next astern in column).

To make life onboard for the crew as uncomfortable as possible, by keeping them at work at all hours, often unnecessarily.

A hand held pneumatic chipping tool which the blows are transmitted through a group of floating needles or metal rods.

A navigational instrument which provides a bearing to a radio beacon.

A schedule of all ports to be visited on a ship's cruise, with dates of arrival and departure and the local agents' names and addresses

Is the temperature existing at the discharge port of the compressor.

A line with a weight on the end used to measure depth. The lead is dropped into the water and marks on the line are read to determine the current water depth. The lead usually has a cavity to return a sample of the bottom type mud, sand, etc.

A light sail, such as a spinnaker, used to make the most of light following winds.

A curved inlet section on an impeller.

ACRONYM - non-lubricated compressor.

Above this pressure, the system may rupture or burst.

A safe anchorage, protected from most storms; may be natural or man-made, with breakwaters and jetties; a place for docking and loading.

An analytical method of assessing machine health by quantifying and examining ferrous wear particles suspended in the lubricant or hydraulic fluid.

Covers for closing up hatchways.