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A superstructure fitted at the after end of the upper deck

Related Terms

AFT

Back of the vessel.

FREEBOARD DECK

Deck to which freeboard is measured

END CAP

A ported or closed cover for the end of a filter element.

FILTER HEAD

An end closure for the filter case or bowl that contains one or more ports.

FILTER HEAD

An end closure for the filter case or bowl which contains one or more ports.

STEALER

A single wide plate that is butt-connected to two narrow plates, usually near the ends of a ship.

TWEEN DECK

The space between any two adjacent decks

TERMINAL VELOCITY

The highest sustained air stream velocity existing in the mixed air path at the end of the throw.

POLAR COMPOUND

A chemical compound whose molecules exhibit electrically positive characteristics at one extremity and negative characteristics at the other. Polar compounds are used as additives in many petroleum products. Polarity gives certain molecules a strong affinity for solid surfaces; as lubricant additives (oiliness agents), such molecules plate out to form a tenacious, friction- reducing film. Some polar molecules are oil-soluble at one end and water-soluble at the other end; in lubricants, they act as emulsifiers, helping to form stable oil-water emulsions. Such lubricants are said to have good metal-wetting properties. Polar compounds with a strong attraction for solid contaminants act as detergents in engine oils by keeping contaminants finely dispersed.

PIVOT BEARING

An axial load bearing, radial-load-type bearing which supports the end of a shaft or pivot.
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