flat valve
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Flat tire — The term flat tire describes the condition whereby a pneumatic tire becomes deflated, such that the metal of the wheel is no longer kept suspended above the ground. This can occur for several reasons: [ [http://www.diynetwork.com/diy/ab… … Wikipedia
Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… … Wikipedia
Valve RF amplifier — A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical , typically (but not exclusively) radio frequency signals.Low to medium power valve amplifiers for frequencies below… … Wikipedia
Flat roof — A flat roof is a type of covering of a building. In contrast to the sloped form of a roof, a flat roof is horizontal or nearly horizontal. Materials that cover flat roofs should allow the water to run off freely from a very slight… … Wikipedia
Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… … Wikipedia
Valve amplifier — A valve amplifier or tube amplifier is a type of electronic amplifier that make use of vacuum tubes instead of solid state semiconductor devices (such as transistors). As any other electronic amplifier they serve to increase the power and/or… … Wikipedia
Flat engine — A flat engine is an internal combustion engine with pistons that are all relatively horizontal. A straight engine canted 90 degrees from straight up is a flat engine, as is one in which the cylinders are arranged in two banks on either side of a… … Wikipedia
flat — [1] When a battery has completely discharged, so that it cannot turn over the engine then the battery is said to be flat. [2] To be completely deflated, especially as the result of a puncture or a leaky valve. See flat tire. [3] A flat tire. [4]… … Dictionary of automotive terms
flat tire — A condition where an air inflated tire is no longer pressured up with air. The problem may be a cut in the casing or tube; or may be caused by a bad valve. When you experience a flat tire, no doubt some wit will tell you that your tire is flat… … Dictionary of automotive terms
valve cover gasket — A gasket between the cylinder head and the valve cover; usually either a flat paper or cork gasket or an O ring. The British term is rocker cover gasket … Dictionary of automotive terms
Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… … Wikipedia
