the antithesis of a vacuum; in other words, completely filled space.
the pressures slightly above atmospheric, usually inside air or gas systems as the result of the action of fans or blowers. The plenum is measured in small units of pressure such as pascals (Pa) or ounces-force per square inch or millimeters of mercury.
a legislative meeting in which all members of the body are present and voting. Frequently this is used to refer to a full meeting of a Communist Partycentral committee. Compare to quorum.
a second set of bellowddddds in devices such as hand or foot pumped organs with a weight on the top which acts as an air reservoir.
Plenum cable refers to structured cabling permitted under building codes for plenum spaces.
where the space above a suspended ceiling is continuous and part of the supply or return air systems of a buildings HVAC system.
Also a term used in Heating and Ventilation, regarding the manufacture of Plenum Boxes, essentially a grill box with a splitter inside. For other uses, see vacuum cleaner and Vacuum (musical group). ... YOU SUCK DICK Pressure (symbol: p) is the force per unit area acting on a surface in a direction perpendicular to that surface. ... diurnal (daily) rhythm of air pressure in northern Germany (black curve is air pressure) Atmospheric pressure is the pressure above any area in the Earths atmosphere caused by the weight of air. ... A gas is one of the four main phases of matter (after solid and liquid, and followed by plasma), that subsequently appear as a solid material is subjected to increasingly higher temperatures. ... Non-electric fan Household Electric Fan A fan has two purposes – to move air for creature comfort or for ventilation and to move air or gas from one location to another for industrial purposes. ... Blower is an English slang term for the telephone. ... The pascal (symbol Pa) is the SI unit of pressure. ... The torr (symbol: Torr) or millimetre of mercury (mmHg) is a non-SI unit of pressure. ... In modern usage, a communist party is a political party which promotes communism, a sociopolitical philosophy based on the particular interpretation of Marxism put forth by Vladimir Lenin. ... 16th Central Committee meeting of the Communist Party of China Central Committee most commonly refers to the central executive unit of a communist party, whether ruling or non-ruling. ... In law, a quorum is the minimum number of members of a deliberative body necessary to conduct the business of that group. ... Building is either the act of creating an object assembled from more than one element, or the object itself; see also construction. ... Note: in the broadest sense, air conditioning can refer to any form of heating, ventilation, and air-conditioning. ... Plenum Cable is cable that is layed in the plenum spaces of buildings. ...
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The work in the plenum is divided into legislation, debates on issues of national concern, supervision of the government's work, the expression of confidence or no-confidence in the Prime Minister, the election of the holders of certain public offices and ceremonial activities.
The agenda of the plenum may include bills, motions for the agenda, parliamentary questions and motions of no-confidence.
The plenum does not require a quorum in order to hold sittings, and it is very rarely that all 120 Knesset Members are present.
In building construction, the plenum (pronounced PLEH-nuhm) is the space that is used for air circulation in heating and air conditioning systems, typically between the structural ceiling and the suspended ceiling or under a raised floor.
However, use of plenum areas for cable storage poses a serious hazard in the event of a fire as once the fire reaches the plenum space there are few barriers to contain the smoke and flames.
Plenum cable is coated with a fire-retardant coating (usually Teflon) so that in case of a fire it does not give off toxic gasses and smoke as it burns.
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