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The plates forming the outer side and bottom skin of the hull

Related Terms

ABSORBER

That part of the low side of an absorption system, used for absorbing vapor refrigerant.

WEATHER SIDE

The side of a ship exposed to the wind.

STEALER

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

FARDAGE

A wood placed in bottom of ship to keep cargo dry

PRESSURE DROP

Resistance to flow created by the element (media) in a filter or other equipment. Defined as the difference in pressure upstream (inlet side of the unit) and downstream (outlet side of the unit).

HOLDING GROUND

The bottom ground of an anchorage. The expression is usually used with a modifying adjective to indicate the quality of the holding power of the material constituting the bottom

BACK PRESSURE

The pressure encountered on the return side of a system.

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.

CYLINDER HEAD

Plate or cap which encloses compression end of compressor cylinder or combustion chamber of engine.

HYPOTENUSE

The side of a plane right triangle opposite the right angle; the longest side of a plane right triangle
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